Can't pull from one pc

I’ve a strange problem, I’ve server with ubuntu 14.04 and gitlab 7.6 and everything works but one pc is not working…
Its accout has admin privileges but it can’t pull, this is the error that comes out:

"C:\Program Files (x86)\Git\bin\git.exe" pull --progress "origin" 
fatal: early EOF
fatal: The remote end hung up unexpectedly
fatal: unpack-objects failed