changed TikTokTTSException msg

TTS/TikTok.py

@@ -162,6 +162,6 @@ class TikTokTTSException(Exception):
             return f"Code: {self._code}, reason: the speaker doesn't exist, message: {self._message}"
         
         if self._code == 5:
-            return f"Would you mind add session id in config ??"
+            return f"You have to add session id in config to use titok TTS"
 
         return f"Code: {self._message}, reason: unknown, message: {self._message}"