user idol calls are not reset every 24h properly

IreneUtility/util/u_groupmembers.py

@@ -867,8 +867,17 @@ async def idol_post(self, channel, idol, **kwargs):
         return msg, image_host
 
     def check_reset_limits(self):
+        """Checks if the user idol calls needs to be reset back to 0."""
         if time.time() - self.ex.cache.last_idol_reset_time > 86400:  # 1 day in seconds
             self.ex.cache.last_idol_reset_time = time.time()  # reset the time
+            # reset user idol calls.
+            await self.ex.run_blocking_code(self.reset_user_idol_calls)
+
+    def reset_user_idol_calls(self):
+        """Resets all user idol calls to zero."""
+        users = self.ex.cache.users.copy()
+        for user in users.values():
+            user.idol_calls = 0
 
     # noinspection PyPep8
     async def check_user_limit(self, message_sender, message_channel, no_vote_limit=False):