It sounds like you may be experiencing a technical issue with the game. It's possible that the mods you installed may have caused conflicts or corrupted files that are preventing the game from loading properly.
Here are a few steps you can try to troubleshoot the issue:
Verify the integrity of the game files through Steam or GOG Galaxy. This will check if any game files are missing or corrupted and replace them if necessary.
Try running the game without the Restored Content Mod to see if the issue persists. If the problem goes away, it's possible that the mod is causing the issue.
If you're still experiencing the issue, try updating your graphics card drivers or rolling them back to a previous version.
If none of the above steps work, you may want to try a fresh install of the game and only install the Restored Content Mod to see if that resolves the issue.