What I recommend you do first is go to your GTA V Directory, look for the GTA5 exe, then click delete, go to your launcher, for example Epic Games, Steam, then verify files. it should force an update.
Epic: C:\Program Files\Epic Games\GTAV
Steam: C:\Program Files (x86)\Steam\steamapps\common\Grand Theft Auto V
I had the same error youre facing, let me know if it fixes anything, hopefully this should work for you
~ Taylor