Sims 4 Unable To Start There Was An Error Processing The Startup Configuration Script Exclusive Better

Because this error specifically mentions a outdated mods that inject scripts (like UI Cheats , MC Command Center , Better BuildBuy , or TOOL ) are prime suspects.

The most common cause of the "Exclusive" error is a localthumbcache.package file that is corrupted or a GameVersion.txt file that the game forgot to release. Because this error specifically mentions a outdated mods

Let’s decode the jargon:

Seeing the error message can be a major roadblock for MC Command Center