I deleted that appdata folder and got no backup of it… (deleted it and overwrote all backups with the new stuff)
Is there any way to fix it? I just see a white screen now with:
"Internal Server Error
The server encountered an internal error and was unable to complete your request.
Please contact the server administrator if this error reappears multiple times, please include the technical details below in your report.
More details can be found in the server log."
Edit: Was able to fix it with this here: Screwed up data/appdata_instanceid