diff --git a/frontend/src/i18n/locale/de.json b/frontend/src/i18n/locale/de.json
index 4e6d0190..f9412ca6 100644
--- a/frontend/src/i18n/locale/de.json
+++ b/frontend/src/i18n/locale/de.json
@@ -73,5 +73,7 @@
     "accept": "akzeptieren",
     "deny": "verweigern",
     "sent": "sent",
-    "failed": "gescheitert"
+    "failed": "gescheitert",
+    "wrong": "etwas ist schief gelaufen",
+    "created": "erstellt"
 }
diff --git a/frontend/src/i18n/locale/en.json b/frontend/src/i18n/locale/en.json
index 06339d2a..171eb1f8 100644
--- a/frontend/src/i18n/locale/en.json
+++ b/frontend/src/i18n/locale/en.json
@@ -73,5 +73,7 @@
     "deny": "deny",
     "createClassInstructions": "Enter a name for your class and click on create. A window will appear with a code that you can copy. Give this code to your students and they will be able to join.",
     "sent": "sent",
-    "failed": "failed"
+    "failed": "failed",
+    "wrong": "something went wrong",
+    "created": "created"
 }
diff --git a/frontend/src/i18n/locale/fr.json b/frontend/src/i18n/locale/fr.json
index 3ce48318..a3d3d89b 100644
--- a/frontend/src/i18n/locale/fr.json
+++ b/frontend/src/i18n/locale/fr.json
@@ -73,5 +73,7 @@
     "accept": "accepter",
     "deny": "refuser",
     "sent": "envoyé",
-    "failed": "échoué"
+    "failed": "échoué",
+    "wrong": "quelque chose n'a pas fonctionné",
+    "created": "créé"
 }
diff --git a/frontend/src/i18n/locale/nl.json b/frontend/src/i18n/locale/nl.json
index 82a310a6..1fbed08d 100644
--- a/frontend/src/i18n/locale/nl.json
+++ b/frontend/src/i18n/locale/nl.json
@@ -73,5 +73,7 @@
     "accept": "accepteren",
     "deny": "weigeren",
     "sent": "verzonden",
-    "failed": "mislukt"
+    "failed": "mislukt",
+    "wrong": "er ging iets verkeerd",
+    "created": "gecreëerd"
 }