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And then it crashed. see attached.
Reinstall the program with sufficient user permissions.
Sorry for your issue.
I agree with Mylenium. To make sure if it's permissions related, I'd reinstall After Effects in a new user account with admin right and see if it's working. If it works in the admin account but not in yours, try changing the permissions as instructed here: https://helpx.adobe.com/in/x-productkb/multi/preferences-folder-read-only-error.html
Let us know how it goes.