RuntimeError: Model class wagtailstreamforms.models.file.FormSubmissionFile doesn't declare an explicit app_label and isn't in an application in INSTALLED_APPS.

[shinderucha]

Expected behaviour

I have updated my Wagtail from v3 to v4.2.2 after which I am getting an error while opening any of the pages previously created. The error is something like this --> type object 'Select' has no attribute 'get_value_data'.
After some debugging I found that this issue is related to wagtailstreamforms, so I have updated my wagtailstreamsforms version as well but after that I am getting below RuntimeError -
RuntimeError: Model class wagtailstreamforms.models.file.FormSubmissionFile doesn't declare an explicit app_label and isn't in an application in INSTALLED_APPS.

Please suggest necessary changes.

Thanks!