The Updater caches files. If files were corrupted on download, the Updater can encounter the same error over and over. To fix:
– Browse to the following hidden folder, where USER is your profile, and XX.x is your PC-Crash version number: C:\Users\USER\AppData\Local\Temp\updater_temp_PC-Crash XX.x

– Delete the most recent subfolder

– Try the Updater again