Database disk image is malformed error on all my backups

Sonarr v2.0.0.5054:
Windows10 v1709:

Yesterday, Sonarr was working as expected, today when I start it I get the below error. I searched the forums for the same issue and attempted to do as advised and restore from a backup. I’m getting the same error though on all my backups, dating back months. Reinstalling Sonarr and just starting it without restoring any backup works fine.

"Exception: database disk image is malformed
database disk image is malformed
While Processing: "Create INDEX “IX_History_EventType” ON “History (“EventType” ASC)”

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A post was merged into an existing topic: Epic Fail on Nov4 update