irc does not work with libera service

[liuyq]

[24/Jun/2021 06:55:44.156] ERROR [django.request:135] Internal Server Error: /lkft/newchanges/android-mainline/5.13.0-rc7-3734b68ca74c/trigger-lkft-android-common/2282
Traceback (most recent call last):
File "/android/django_postgres/workspace-python3/lib/python3.6/site-packages/django/core/handlers/exception.py", line 41, in inner
response = get_response(request)
File "/android/django_postgres/workspace-python3/lib/python3.6/site-packages/django/core/handlers/base.py", line 187, in _get_response
response = self.process_exception_by_middleware(e, request)
File "/android/django_postgres/workspace-python3/lib/python3.6/site-packages/django/core/handlers/base.py", line 185, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/android/django_postgres/lcr-report/lkft/views.py", line 2262, in new_kernel_changes
irc.sendAndQuit(msgStrOrAry=msgStrOrAry)
File "/android/django_postgres/lcr-report/lcr/irc.py", line 140, in sendAndQuit
self.connect(using_sasl=using_sasl)
File "/android/django_postgres/lcr-report/lcr/irc.py", line 257, in connect
self.connectAuthenticateJoin(self.server, self.port, self.channel, self.botnick, self.botpass, using_sasl=using_sasl)
File "/android/django_postgres/lcr-report/lcr/irc.py", line 253, in connectAuthenticateJoin
self.join(channel)
File "/android/django_postgres/lcr-report/lcr/irc.py", line 219, in join
if text.find(str_joined) != -1:
AttributeError: 'NoneType' object has no attribute 'find'