[Call of Duty: Ghosts couldn't write a file. The hard drive is probably full]

[BLM Seita]

I keep getting this notification since three days ago. I was able to play CoD when it came out (I'm up to level 20 now), but for some reason it won't start. I've restarted my computer, checked game cache, deleted clientregistry.blob, starting it up as administrator, etc.

I have it on an external hard drive but it has 1.8 TBs left and I doubt that there's not enough space.

Any solutions?

I've reinstalled the game in a non-external drive and I'm still getting the same error.
It's only for Multiplayer