try to fix

Dockerfile

@@ -8,4 +8,4 @@ RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt
 
 COPY . .
 
-CMD ["gunicorn","-b", "0.0.0.0:7860", "main:app"]
+CMD ["gunicorn","-b", "0.0.0.0:7860", "main:app"]

main.py

@@ -3,9 +3,9 @@ from flask import Flask, request, abort, send_from_directory
 import markdown
 from bs4 import BeautifulSoup
 
-# from linebot.v3 import (
-#     WebhookHandler
-# )
+from linebot.v3 import (
+    WebhookHandler
+)
 from linebot.v3.exceptions import (
     InvalidSignatureError
 )
@@ -20,8 +20,6 @@ from linebot.v3.webhooks import (
     MessageEvent,
     TextMessageContent
 )
-from linebot import LineBotApi, WebhookHandler
-from linebot.models import TextSendMessage
 
 import os
 import requests