Where is that folder? I can't find it.
Do you have an existing save? If yes, start on step 1. If no, then you don't need to delete it and proceed to step 2.
1. start at your APPDATA folder, if you're unsure which appdata profile to go to, go to your windows search bar and type "%APPDATA%" without quotes then hit enter. You should be redirected to your Appdata/Roaming folder, go back one stage by clicking "Appdata" on the address bar so you should be on your Appdata folder now. Then go to "LocalLow" folder and then finally the "NTRMAN" folder. If you played a bunch of NTRMAN games there would be a ton of folders here. Simply delete the "TenantsOfTheDead" folder.
2. Start the game, unlock the gallery/replay/outfits by clicking on the build version on the bottom right. It should say 12112023 as of this release, after clicking it once you unlock all of the content for this patch.