Delete outdated temp files:
Before diving into the error, let's understand what patch0dat is. Patch0dat is a data file used by various applications, including games, to store patch-related information. It's a critical component that ensures your software stays up-to-date with the latest fixes, features, and improvements.
: If a "new" update was interrupted by a loss of internet or a crash, the launcher may think the download is complete while the patch0dat file is either missing or corrupt.