Update app.py

app.py

@@ -13,7 +13,7 @@ from vcoder_llava.vcoder_conversation import (default_conversation, conv_templat
 from vcoder_llava.constants import LOGDIR
 from vcoder_llava.utils import (build_logger, server_error_msg,
                           violates_moderation, moderation_msg)
-from .chat import Chat
+from chat import Chat
 
 
 logger = build_logger("gradio_app", "gradio_web_server.log")