Update app.py

app.py

@@ -46,7 +46,9 @@ async def updb():
     await client.start(bot_token=bot_token)
     path = 'instance/database.db'
     fle =  await fast_upload(client, file_location=path)
-    await client.send_file(channel,fle, force_document=True)   
+    entity = await client.get_entity(channel)
+
+    await client.send_file(entity,fle, force_document=True)   
     return '2'
 
 app = Flask("Simplz")