All my citations are gone from local Zotero - "An error has occurred"

Report ID: 410405421

I suddenly got an error with Zotero, and have restarted several times without any change. When I open Zotero Desktop everything is blank and I just see a screen that says "An error has occurred. Please restart Zotero".

My citations are luckily still on my library online. I have also tried re-installing Zotero.
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