diff --git a/src/i18n/strings/eo.json b/src/i18n/strings/eo.json
index 2c961b2e9..e4ad07100 100644
--- a/src/i18n/strings/eo.json
+++ b/src/i18n/strings/eo.json
@@ -36,14 +36,14 @@
     "%(appName)s via %(browserName)s on %(osName)s": "%(appName)s per %(browserName)s je %(osName)s",
     "You can use the custom server options to sign into other Matrix servers by specifying a different Home server URL.<br/>This allows you to use Riot with an existing Matrix account on a different home server.<br/><br/>You can also set a custom identity server but you won't be able to invite users by email address, or be invited by email address yourself.": "Vi povas uzi proprajn servilajn elektojn por saluti aliajn servilojn de Matrix, per specifo de alia hejmservila URL.<br/>Tio permesas al vi uzi klienton Riot kun jama konto de Matrix en alia hejmservilo.<br/><br/>Vi ankaŭ povas agordi propran identigan servilon, sed vi ne povos inviti uzantojn per retpoŝtadreso, aŭ esti invitata per retpoŝtadreso mem.",
     "Co-ordination for Riot translators": "Kunordigo por tradukantoj de Riot",
-    "You can also set a custom identity server, but you won't be able to invite users by email address, or be invited by email address yourself.": "Vi povas ankaŭ agordi propran identigan servilon, sed vi ne eblos inviti uzantojn per retpoŝtadresoj, nek eblos esti invitita per retpoŝtadreso.",
-    "Sign In": "Saluti",
+    "You can also set a custom identity server, but you won't be able to invite users by email address, or be invited by email address yourself.": "Vi povas ankaŭ agordi propran identigan servilon, sed vi ne eblos inviti uzantojn per retpoŝtadresoj, nek tiel invitiĝi.",
+    "Sign In": "Ensaluti",
     "Create Account": "Krei konton",
     "Need help?": "Ĉu vi bezonas helpon?",
     "Explore rooms": "Esplori ĉambrojn",
     "Room Directory": "Ĉambra dosierujo",
-    "You can use the custom server options to sign into other Matrix servers by specifying a different homeserver URL. This allows you to use Riot with an existing Matrix account on a different homeserver.": "Vi povas uzi proprajn servilajn elekteblojn por saluti aliajn servilojn de Matrix, donante alian hejmeservilan URL-on. Tio povigos vin uzi programon Riot kun jama konto de Matrix en alia hejmservilo.",
-    "Unexpected error preparing the app. See console for details.": "Neatendida eraro okazis dum preparad de la aplikaĵo. Detalojn trovu en konzolo.",
+    "You can use the custom server options to sign into other Matrix servers by specifying a different homeserver URL. This allows you to use Riot with an existing Matrix account on a different homeserver.": "Vi povas uzi proprajn servilajn elekteblojn por ensaluti al aliaj serviloj de Matrix per doni alian hejmeservilan URL-on. Tio povigos vin uzi Riot kun jama konto de Matrix en alia hejmservilo.",
+    "Unexpected error preparing the app. See console for details.": "Neatendita eraro okazis dum la preparado de la aplikaĵo. Rigardu la konzolon por detaloj.",
     "Invalid configuration: can only specify one of default_server_config, default_server_name, or default_hs_url.": "Nevalida agordo: vi povas specifi nur unu elekteblon el « default_server_config », « default_server_name », aŭ « default_hs_url ».",
     "Invalid configuration: no default server specified.": "Nevalida agordo: neniu implicita servilo estas specifita.",
     "Your Riot is misconfigured": "Via kliento Riot estas misagordita"
diff --git a/src/i18n/strings/es.json b/src/i18n/strings/es.json
index 3c949426e..387a19101 100644
--- a/src/i18n/strings/es.json
+++ b/src/i18n/strings/es.json
@@ -8,7 +8,7 @@
     "Riot is not supported on mobile web. Install the app?": "Riot no está soportado en navegadores Web móviles. ¿Quieres instalar la aplicación?",
     "You need to be using HTTPS to place a screen-sharing call.": "Debes usar HTTPS para hacer una llamada con pantalla compartida.",
     "Welcome to Riot.im": "Bienvenido a Riot.im",
-    "Decentralised, encrypted chat &amp; collaboration powered by [matrix]": "Conversaciones cifradas y descentralizadas &amp;  colaboración con el poder de [matrix]",
+    "Decentralised, encrypted chat &amp; collaboration powered by [matrix]": "Conversaciones cifradas y descentralizadas y colaboración con el poder de [matrix]",
     "Search the room directory": "Buscar en el directorio de salas",
     "Chat with Riot Bot": "Hablar con Riot Bot",
     "Get started with some tips from Riot Bot!": "¡Comenzar con algunos consejos de Riot Bot!",
@@ -42,5 +42,9 @@
     "You can also set a custom identity server, but you won't be able to invite users by email address, or be invited by email address yourself.": "También puedes definir un servidor de identidad personalizado,  pero no podrás invitar a usuarios o ser inivitado usando direcciones de correo.",
     "Explore rooms": "Explorar salas",
     "Room Directory": "Directorio de salas",
-    "You can use the custom server options to sign into other Matrix servers by specifying a different homeserver URL. This allows you to use Riot with an existing Matrix account on a different homeserver.": "Puedes usar la opción de servidor personalizado para iniciar sesión en otros servidores Matrix, especificando la dirección URL del servidor. Esto te permite usar una cuenta Matrix en un servidor diferente."
+    "You can use the custom server options to sign into other Matrix servers by specifying a different homeserver URL. This allows you to use Riot with an existing Matrix account on a different homeserver.": "Puedes usar la opción de servidor personalizado para iniciar sesión en otros servidores Matrix, especificando la dirección URL del servidor. Esto te permite usar una cuenta Matrix en un servidor diferente.",
+    "Unexpected error preparing the app. See console for details.": "Error inesperado preparando la aplicación. Vea la consola para más detalles.",
+    "Your Riot is misconfigured": "Riot tiene un error de configuración",
+    "Invalid configuration: can only specify one of default_server_config, default_server_name, or default_hs_url.": "Configuración errónea: sólo puede especificar uno de default_server_config, default_server_name, o default_hs_url.",
+    "Invalid configuration: no default server specified.": "Configuración errónea: no se ha especificado servidor."
 }
diff --git a/src/i18n/strings/eu.json b/src/i18n/strings/eu.json
index 861caebc6..e880661ba 100644
--- a/src/i18n/strings/eu.json
+++ b/src/i18n/strings/eu.json
@@ -46,5 +46,8 @@
     "Unexpected error preparing the app. See console for details.": "Ustekabeko errorea aplikazioa prestatzean. Ikusi xehetasunak kontsolan.",
     "Your Riot is misconfigured": "Zure Riot gaizki konfiguratuta dago",
     "Invalid configuration: no default server specified.": "Konfigurazio baliogabea: Ez da lehenetsitako zerbitzaririk zehaztu.",
-    "Invalid configuration: can only specify one of default_server_config, default_server_name, or default_hs_url.": "Konfigurazio baliogabea: default_server_config, default_server_name, edo default_hs_url bat bakarra zehaztu daiteke."
+    "Invalid configuration: can only specify one of default_server_config, default_server_name, or default_hs_url.": "Konfigurazio baliogabea: default_server_config, default_server_name, edo default_hs_url bat bakarra zehaztu daiteke.",
+    "Your Riot configuration contains invalid JSON. Please correct the problem and reload the page.": "Zure Riot konfigurazioak baliogabeko JSON kodea du. Zuzendu arazoa eta kargatu orria berriro.",
+    "The message from the parser is: %(message)s": "Prozesatzailearen mezua hau da: %(message)s",
+    "Invalid JSON": "JSON baliogabea"
 }
diff --git a/src/i18n/strings/fi.json b/src/i18n/strings/fi.json
index 953a47c37..7fff07077 100644
--- a/src/i18n/strings/fi.json
+++ b/src/i18n/strings/fi.json
@@ -28,7 +28,7 @@
     "Dev chat for the Riot/Web dev team": "Kehittäjäkeskustelu Riot/Web kehitystiimille",
     "Dev chat for the Dendrite dev team": "Kehittäjäkeskustelu Dendrite kehitystiimille",
     "Lots of rooms already exist in Matrix, linked to existing networks (Slack, IRC, Gitter etc) or independent. Check out the directory!": "Matrixissa on olemassa monia huoneita, jotka on linkitetty olemassa oleviin verkkoihin (Slack, IRC, Gitter yms.). Tutustu hakemistoon!",
-    "powered by Matrix": "Matrix",
+    "powered by Matrix": "moottorina Matrix",
     "Riot is not supported on mobile web. Install the app?": "Riot ei tue laitettasi. Asenna mobiilisovellus?",
     "Design and implementation of E2E in Matrix": "Matrix päästä-päähän salauksen suunnittelu ja implementointi",
     "Contributing code to Matrix and Riot": "Osallistu kehitystyöhön",
@@ -45,5 +45,8 @@
     "Unexpected error preparing the app. See console for details.": "Odottamaton virhe sovellusta valmisteltaessa. Katso konsolista lisätietoja.",
     "Your Riot is misconfigured": "Riotin asetukset ovat pielessä",
     "Invalid configuration: can only specify one of default_server_config, default_server_name, or default_hs_url.": "Virheellinen asetus. Vain yhden seuraavista voi määrittää: default_server_config, default_server_name, tai default_hs_url.",
-    "Invalid configuration: no default server specified.": "Virheellinen asetus: oletuspalvelinta ei ole määritetty."
+    "Invalid configuration: no default server specified.": "Virheellinen asetus: oletuspalvelinta ei ole määritetty.",
+    "Your Riot configuration contains invalid JSON. Please correct the problem and reload the page.": "Riot-asetuksissasi on virheellistä JSONia. Korjaa ongelma ja lataa sivu uudelleen.",
+    "The message from the parser is: %(message)s": "Viesti jäsentimeltä: %(message)s",
+    "Invalid JSON": "Virheellinen JSON"
 }
diff --git a/src/i18n/strings/fr.json b/src/i18n/strings/fr.json
index f0921c2c6..1006ec99b 100644
--- a/src/i18n/strings/fr.json
+++ b/src/i18n/strings/fr.json
@@ -47,5 +47,8 @@
     "Invalid configuration: can only specify one of default_server_config, default_server_name, or default_hs_url.": "Configuration invalide : il ne faut spécifier qu’un des trois champs entre default_server_config, default_server_name et default_hs_url.",
     "Invalid configuration: no default server specified.": "Configuration invalide : aucun serveur par défaut spécifié.",
     "This installation of Riot seems to have an invalid server configuration. If you are the administrator, please correct the error below": "Cette installation de Riot semble avoir une configuration de serveur non valide. Si vous êtes l’administrateur, corrigez l’erreur ci-dessous",
-    "Your Riot is misconfigured": "Votre Riot est mal configuré"
+    "Your Riot is misconfigured": "Votre Riot est mal configuré",
+    "Your Riot configuration contains invalid JSON. Please correct the problem and reload the page.": "Votre configuration de Riot contient du JSON non valide. Corrigez ce problème et rechargez la page.",
+    "The message from the parser is: %(message)s": "Le message de l’analyseur est : %(message)s",
+    "Invalid JSON": "JSON non valide"
 }
diff --git a/src/i18n/strings/hu.json b/src/i18n/strings/hu.json
index 201912267..755a5b378 100644
--- a/src/i18n/strings/hu.json
+++ b/src/i18n/strings/hu.json
@@ -47,5 +47,8 @@
     "Invalid configuration: can only specify one of default_server_config, default_server_name, or default_hs_url.": "Érvénytelen konfiguráció: csak egyet lehet megadni a default_server_config, default_server_name és default_hs_url közül.",
     "Invalid configuration: no default server specified.": "Érvénytelen konfiguráció: nincs megadva alapértelmezett szerver.",
     "This installation of Riot seems to have an invalid server configuration. If you are the administrator, please correct the error below": "A telepített Riotnak úgy tűnik hibás a szerver beállítása. Ha te vagy az adminisztrátor, kérlek javítsd az alábbi hibát",
-    "Your Riot is misconfigured": "A Riotod hibásan van beállítva"
+    "Your Riot is misconfigured": "A Riotod hibásan van beállítva",
+    "Your Riot configuration contains invalid JSON. Please correct the problem and reload the page.": "A Riot beállításod érvénytelen JSON szöveget tartalmaz. Kérlek javítsd és töltsd újra az oldalt.",
+    "The message from the parser is: %(message)s": "A feldolgozó algoritmus üzenete: %(message)s",
+    "Invalid JSON": "Érvénytelen JSON"
 }
diff --git a/src/i18n/strings/ja.json b/src/i18n/strings/ja.json
index b916254d0..022f721cb 100644
--- a/src/i18n/strings/ja.json
+++ b/src/i18n/strings/ja.json
@@ -7,7 +7,7 @@
     "Custom Server Options": "カスタムサーバのオプション",
     "You can use the custom server options to sign into other Matrix servers by specifying a different Home server URL.<br/>This allows you to use Riot with an existing Matrix account on a different home server.<br/><br/>You can also set a custom identity server but you won't be able to invite users by email address, or be invited by email address yourself.": "他のホームサーバのURLを指定することで、他のMatrixサーバにサインインするためにカスタムサーバのオプションを利用できます。<br/>これにより、他のホームサーバ上で既存のMatrixアカウントを用いてRiotを利用できます。<br/><br/>カスタムアイデンティティサーバを立てることもできますが、メールアドレスでユーザを招待する、または自身が招待されることはできません。",
     "Dismiss": "やめる",
-    "powered by Matrix": "Matrixによって動作しています",
+    "powered by Matrix": "Matrix の支援により活動しています。",
     "Riot Desktop on %(platformName)s": "%(platformName)s向けデスクトップ版Riot",
     "You need to be using HTTPS to place a screen-sharing call.": "画面共有通話を行うにはHTTPS通信を使う必要があります。",
     "Decentralised, encrypted chat &amp; collaboration powered by [matrix]": "分散型の、暗号化された会話とコラボレーション。[matrix]で動作しています",
@@ -35,5 +35,13 @@
     "Contributing code to Matrix and Riot": "MatrixとRiotにコードを提供する",
     "Dev chat for the Riot/Web dev team": "Riot/Web開発者チームのための開発者チャット",
     "Dev chat for the Dendrite dev team": "Dendrite開発者チームのための開発者チャット",
-    "Co-ordination for Riot translators": "Riot 翻訳者による共同作業"
+    "Co-ordination for Riot translators": "Riot 翻訳者による共同作業",
+    "Unexpected error preparing the app. See console for details.": "アプリケーションの準備中に予期しないエラーが発生しました。詳細はコンソールを参照してください。",
+    "Your Riot is misconfigured": "あなたの Riot は間違って設定されています。",
+    "Invalid configuration: no default server specified.": "不正な設定です：デフォルトのサーバーが設定されていません。",
+    "Sign In": "サインイン",
+    "Create Account": "アカウントを作成する",
+    "Need help?": "助けが必要ですか？",
+    "Explore rooms": "部屋を探索する",
+    "Room Directory": "部屋のディレクトリー"
 }
diff --git a/src/i18n/strings/nl.json b/src/i18n/strings/nl.json
index 648e1696a..ce17051e0 100644
--- a/src/i18n/strings/nl.json
+++ b/src/i18n/strings/nl.json
@@ -47,5 +47,8 @@
     "Invalid configuration: can only specify one of default_server_config, default_server_name, or default_hs_url.": "Ongeldige configuratie: kan slechts één van default_server_config, default_server_name, of default_hs_url opgeven.",
     "Invalid configuration: no default server specified.": "Ongeldige configuratie: geen standaardserver opgegeven.",
     "This installation of Riot seems to have an invalid server configuration. If you are the administrator, please correct the error below": "De serverconfiguratie van deze Riot-instantie lijkt ongeldig. Als u de beheerder bent, gelieve dan de fout hieronder te corrigeren",
-    "Your Riot is misconfigured": "Uw Riot is verkeerd geconfigureerd"
+    "Your Riot is misconfigured": "Uw Riot is verkeerd geconfigureerd",
+    "Your Riot configuration contains invalid JSON. Please correct the problem and reload the page.": "Uw Riot-configuratie bevat ongeldige JSON. Corrigeer het probleem en herlaad de pagina.",
+    "The message from the parser is: %(message)s": "Het bericht van de verwerker is: %(message)s",
+    "Invalid JSON": "Ongeldige JSON"
 }
diff --git a/src/i18n/strings/sq.json b/src/i18n/strings/sq.json
index 2970fb6a7..a18875abd 100644
--- a/src/i18n/strings/sq.json
+++ b/src/i18n/strings/sq.json
@@ -47,5 +47,8 @@
     "Invalid configuration: can only specify one of default_server_config, default_server_name, or default_hs_url.": "Formësim i pavlefshëm: mund të caktohet vetëm një prej default_server_config, default_server_name, ose default_hs_url.",
     "Invalid configuration: no default server specified.": "Formësim i pavlefshëm: s’është caktuar shërbyes parazgjedhje.",
     "This installation of Riot seems to have an invalid server configuration. If you are the administrator, please correct the error below": "Ky instalim i Riot-it duket se ka një formësim të pavlefshëm për shërbyesin. Nëse jeni një përgjegjës, ju lutemi, ndreqni gabimin më poshtë",
-    "Your Riot is misconfigured": "Riot-i juaj është i keqformësuar"
+    "Your Riot is misconfigured": "Riot-i juaj është i keqformësuar",
+    "Your Riot configuration contains invalid JSON. Please correct the problem and reload the page.": "Formësimi juaj i Riot-it përmban JSON. Ju lutemi, ndreqeni problemin dhe ringarkoni faqen.",
+    "The message from the parser is: %(message)s": "Mesazhi prej procesit është: %(message)s",
+    "Invalid JSON": "JSON i pavlefshëm"
 }
diff --git a/src/i18n/strings/vls.json b/src/i18n/strings/vls.json
index feb48305c..e16302a1f 100644
--- a/src/i18n/strings/vls.json
+++ b/src/i18n/strings/vls.json
@@ -20,5 +20,8 @@
     "Chat with Riot Bot": "Chattn me Riot-robot",
     "Explore rooms": "Gesprekkn ountdekkn",
     "Room Directory": "Gesprekscataloog",
-    "Your Riot is misconfigured": "Je Riot is verkeerd geconfigureerd gewist"
+    "Your Riot is misconfigured": "Je Riot is verkeerd geconfigureerd gewist",
+    "Your Riot configuration contains invalid JSON. Please correct the problem and reload the page.": "Je Riot-configuroatie bevat oungeldigen JSON. Corrigeer ’t probleem en herload ’t blad.",
+    "The message from the parser is: %(message)s": "’t Bericht van de verwerker is: %(message)s",
+    "Invalid JSON": "Oungeldigen JSON"
 }