Telethon pull request notification error

File "/app/.heroku/python/lib/python3.9/site-packages/quart/app.py", line 1489, in handle_request
2022-01-01T16:14:47.323209+00:00 app[web.1]: return await self.full_dispatch_request(request_context)
2022-01-01T16:14:47.323210+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.9/site-packages/quart/app.py", line 1514, in full_dispatch_request
2022-01-01T16:14:47.323210+00:00 app[web.1]: result = await self.handle_user_exception(error)
2022-01-01T16:14:47.323211+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.9/site-packages/quart/app.py", line 964, in handle_user_exception
2022-01-01T16:14:47.323211+00:00 app[web.1]: raise error
2022-01-01T16:14:47.323212+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.9/site-packages/quart/app.py", line 1512, in full_dispatch_request
2022-01-01T16:14:47.323212+00:00 app[web.1]: result = await self.dispatch_request(request_context)
2022-01-01T16:14:47.323212+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.9/site-packages/quart/app.py", line 1557, in dispatch_request
2022-01-01T16:14:47.323213+00:00 app[web.1]: return await self.ensure_async(handler)(**request_.view_args)
2022-01-01T16:14:47.323213+00:00 app[web.1]: File "/app/git_alert_core.py", line 202, in ghoo_k
2022-01-01T16:14:47.323214+00:00 app[web.1]: {escape(data['pull_request']['body'])}
2022-01-01T16:14:47.323214+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.9/html/init.py", line 19, in escape
2022-01-01T16:14:47.323214+00:00 app[web.1]: s = s.replace("&", "&") # Must be done first!
2022-01-01T16:14:47.323215+00:00 app[web.1]: AttributeError: 'NoneType' object has no attribute 'replace'