server: fix crash when translator is stopped without having a single push

server/reflector/processors/transcript_translator.py

@@ -16,6 +16,7 @@ class TranscriptTranslatorProcessor(Processor):
 
     def __init__(self, **kwargs):
         super().__init__(**kwargs)
+        self.transcript = None
         self.translate_url = settings.TRANSLATE_URL
         self.timeout = settings.TRANSLATE_TIMEOUT
         self.headers = {"Authorization": f"Bearer {settings.LLM_MODAL_API_KEY}"}