Fix workshop mods using a simple process
—Set Up Collection—
Make a collection with all your mods. This is so you can easily unsubscribe/re-subscribe to your mods, and apply this fix if it happens again.
1. Create Collection:
2. Add mods:
3.Unsubscribe from all mods:
—Apply Fix—
1. Delete old workshop files
2. Re-download all files
Thanks to boxchat for his great guide, all credit to his effort. you can also read the original guide from Steam Community. enjoy the game.