diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 43d1d54..6d6f31e 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -6,7 +6,7 @@ SPDX-License-Identifier: MPL-2.0
 # Contribute to ClassQuiz
 
 For the development-setup, please check out the
-docs: [classquiz.mawoka.eu/docs/develop](https://classquiz.mawoka.eu/docs/develop)
+docs: [https://classquiz.de/docs/develop](https://classquiz.de/docs/develop)
 
 ## Formatting git-commits
 
@@ -25,6 +25,6 @@ an issue here on GitHub.
 
 ## Want to translate?
 
-Go to [Weblate](https://translate.mawoka.eu/projects/classquiz/frontend/).
+Go to [Weblate](https://hosted.weblate.org/projects/classquiz/).
 If the language isn't available, please open
 an issue here, so I'll be able to add it.
diff --git a/classquiz/socket_server/__init__.py b/classquiz/socket_server/__init__.py
index 52875cc..5ff3e6b 100644
--- a/classquiz/socket_server/__init__.py
+++ b/classquiz/socket_server/__init__.py
@@ -292,10 +292,16 @@ async def submit_answer(sid: str, data: dict):
     session = await get_session(sid, sio)
     question_index = int(float(data.question_index))
     game_data = await PlayGame.get_from_redis(session["game_pin"])
+
+    if question_index != game_data.current_question:
+        await sio.emit("question_not_active", room=sid)
+        return
+
     already_answered = await has_already_answered(session["game_pin"], question_index, session["username"])
     if already_answered:
         await sio.emit("already_replied", room=sid)
         return
+
     answer_right, answer = check_answer(game_data, data)
     latency = int(float(session["ping"]))
     time_q_started = datetime.fromisoformat(await redis.get(f"game:{session['game_pin']}:current_time"))