error: ClassFactory cannot supply requested class (Exception from HRESULT: 0x80040111 (CLASS_E_CLASSNOTAVAILABLE))
Previously it was running fine
Even one type into activity is processing correctly for login in to application, but for further processing it is giving an error as mentioned above
Will need more context but a rough guess will be that the version of the activity you’re using doesn’t match with the one provided by your dependencies. Try removing the type into and adding it again so you will get the version of the activity that matches your dependencies, also is a good practice to update your dependencies.
If you require more help please share more context: screenshots, .xaml file