We just upgraded from v8.0 to v10.1.0 yesterday and on some queries(which were working fine previously) we are getting the below error.

Traceback (most recent call last):
File “/usr/local/lib/python3.7/site-packages/flask/app.py”, line 1949, in full_dispatch_request
rv = self.dispatch_request()
File “/usr/local/lib/python3.7/site-packages/flask/app.py”, line 1935, in dispatch_request
return self.view_functionsrule.endpoint
File “/usr/local/lib/python3.7/site-packages/flask_restful/init.py”, line 458, in wrapper
resp = resource(*args, **kwargs)
File “/usr/local/lib/python3.7/site-packages/flask_login/utils.py”, line 261, in decorated_view
return func(*args, **kwargs)
File “/usr/local/lib/python3.7/site-packages/flask/views.py”, line 89, in view
return self.dispatch_request(*args, **kwargs)
File “/app/redash/handlers/base.py”, line 33, in dispatch_request
return super(BaseResource, self).dispatch_request(*args, **kwargs)
File “/usr/local/lib/python3.7/site-packages/flask_restful/init.py”, line 573, in dispatch_request
resp = meth(*args, **kwargs)
File “/app/redash/permissions.py”, line 71, in decorated
return fn(*args, **kwargs)
File “/app/redash/handlers/query_results.py”, line 311, in post
max_age,
File “/app/redash/handlers/query_results.py”, line 66, in run_query
if data_source.paused:
AttributeError: ‘NoneType’ object has no attribute ‘paused’

Could not find any similar errors with other people. I followed the v10.0 upgrade guide and only substituted the image version for the 10.1 upgrade.

What can we do to resolve this?