diff --git a/src/components/Error/ErrorSnackbar.tsx b/src/components/Error/ErrorSnackbar.tsx
index d67a7f6..332f3dd 100644
--- a/src/components/Error/ErrorSnackbar.tsx
+++ b/src/components/Error/ErrorSnackbar.tsx
@@ -20,6 +20,36 @@ export function ErrorSnackbar({
     dispatch(type === "calendar" ? calendarClearError() : userClearError());
   };
 
+  const getErrorMessage = () => {
+    if (!error) return t("error.unknown");
+
+    // Check if error message is a translation key with params
+    // Format: TRANSLATION:key|param1=value1|param2=value2
+    if (error.startsWith("TRANSLATION:")) {
+      const parts = error.substring(12).split("|");
+      const translationKey = parts[0];
+      const params: Record<string, string> = {};
+
+      for (let i = 1; i < parts.length; i++) {
+        const equalIndex = parts[i].indexOf("=");
+        if (equalIndex === -1) continue;
+        const key = parts[i].substring(0, equalIndex);
+        const value = parts[i].substring(equalIndex + 1);
+        if (key && value) {
+          try {
+            params[key] = decodeURIComponent(value);
+          } catch {
+            params[key] = value;
+          }
+        }
+      }
+
+      return t(translationKey, params);
+    }
+
+    return error;
+  };
+
   return (
     <Snackbar
       open={!!error}
@@ -36,7 +66,7 @@ export function ErrorSnackbar({
           </Button>
         }
       >
-        {error || t("error.unknown")}
+        {getErrorMessage()}
       </Alert>
     </Snackbar>
   );
diff --git a/src/features/Calendars/CalendarSlice.ts b/src/features/Calendars/CalendarSlice.ts
index 6af7177..fc9c75e 100644
--- a/src/features/Calendars/CalendarSlice.ts
+++ b/src/features/Calendars/CalendarSlice.ts
@@ -170,7 +170,16 @@ export const getTempCalendarsListAsync = createAsyncThunk<
       tempUser.openpaasId ?? "",
       "sharedPublic=true&"
     )) as Record<string, any>;
-    const rawCalendars = calendars._embedded["dav:calendar"];
+
+    const rawCalendars = calendars._embedded?.["dav:calendar"];
+    if (!rawCalendars || rawCalendars.length === 0) {
+      const userName = tempUser.displayName || tempUser.email || "User";
+      // Format: TRANSLATION:key|param1=value1
+      const encodedName = encodeURIComponent(userName);
+      throw new Error(
+        `TRANSLATION:calendar.userDoesNotHavePublicCalendars|name=${encodedName}`
+      );
+    }
 
     for (const cal of rawCalendars) {
       const name = cal["dav:name"];
diff --git a/src/locales/en.json b/src/locales/en.json
index c3caa2a..138be09 100644
--- a/src/locales/en.json
+++ b/src/locales/en.json
@@ -18,6 +18,7 @@
     "browseOtherCalendars": "Browse other calendars",
     "noPublicCalendarsFor": "No publicly available calendars for %{name}",
     "noMoreCalendarsFor": "No more calendars for %{name}",
+    "userDoesNotHavePublicCalendars": "%{name} does not have public calendars",
     "delete": {
       "title": "Remove %{name}?",
       "personalWarning": "You will lose all events in this calendar.",
diff --git a/src/locales/fr.json b/src/locales/fr.json
index 6ac2ead..83140a0 100644
--- a/src/locales/fr.json
+++ b/src/locales/fr.json
@@ -18,6 +18,7 @@
     "browseOtherCalendars": "Parcourir d'autres calendriers",
     "noPublicCalendarsFor": "Aucun calendrier public disponible pour %{name}",
     "noMoreCalendarsFor": "Plus de calendriers disponibles pour %{name}",
+    "userDoesNotHavePublicCalendars": "%{name} n'a pas de calendriers publics",
     "delete": {
       "title": "Supprimer %{name} ?",
       "personalWarning": "Vous allez perdre tous les événements de ce calendrier.",
diff --git a/src/locales/ru.json b/src/locales/ru.json
index a3fcdd2..ab5826f 100644
--- a/src/locales/ru.json
+++ b/src/locales/ru.json
@@ -18,6 +18,7 @@
     "browseOtherCalendars": "Просмотреть другие календари",
     "noPublicCalendarsFor": "Нет общедоступных календарей для %{name}",
     "noMoreCalendarsFor": "Других календарей для %{name} нет",
+    "userDoesNotHavePublicCalendars": "%{name} не имеет общедоступных календарей",
     "delete": {
       "title": "Удалить %{name}?",
       "personalWarning": "Вы потеряете все события в этом календаре.",
diff --git a/src/locales/vi.json b/src/locales/vi.json
index 9f8021c..850e10b 100644
--- a/src/locales/vi.json
+++ b/src/locales/vi.json
@@ -18,6 +18,7 @@
     "browseOtherCalendars": "Xem các lịch khác",
     "noPublicCalendarsFor": "Không có lịch công khai cho %{name}",
     "noMoreCalendarsFor": "Không còn lịch nào cho %{name}",
+    "userDoesNotHavePublicCalendars": "%{name} không có lịch công khai",
     "delete": {
       "title": "Xóa %{name}?",
       "personalWarning": "Bạn sẽ mất tất cả sự kiện trong lịch này.",