Root folder already configured

Sonarr version (exact version):
Mono version (if Sonarr is not running on Windows):
OS:
Debug logs:
Description of issue:

I had to reinstall Sonarr and now all of the shows I monitor are gone and I have to re-add them. When I go to add the shows and try to attach them to the folders of the shows that I already have, I get the error message saying that folder is already configured as a root folder.
  • Is there an easy way to fix this?
  • Or how can I get back all the shows that are monitored without readding them?

https://wiki.servarr.com/en/sonarr/quick-start-guide#how-to-import-your-existing-organized-media-library