Fix i18n of health check errors

aleksis/core/health_checks.py

@@ -47,7 +47,7 @@ class BaseBackupHealthCheck(BaseHealthCheckBackend):
 
             # Check if backup is older than configured time
             if time_gone_since_backup.seconds > self.configured_seconds:
-                self.add_error(_(f"Last backup {time_gone_since_backup}!"))
+                self.add_error(_("Last backup {}!").format(time_gone_since_backup))
         else:
             self.add_error(_("No backup found!"))
 
@@ -78,4 +78,4 @@ class BackupJobHealthCheck(BaseHealthCheckBackend):
         if not task:
             self.add_error(_("No backup result found!"))
         elif task and task.status != "SUCCESS":
-            self.add_error(_(f"{task.status} - {task.result}"))
+            self.add_error(f"{task.status} - {task.result}")