1.Completely turn off steam
2.Download the attached 7zip and unpack the files inside of the zip into the steam folder (where the steam.exe is)
3.In the same folder create a steam.cfg file (if you don't have it)
4.Add this to the steam.cfg file =
BootStrapperInhibitAll=enable
BootStrapperForceSelfUpdate = disable
#ForceOfflineMode=enable
5.Done now primordial won't crash (edited)
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ive found this fix on inferno.lua discord server i dont know if it works, i hope it works for you
kiss ♥