Git or what am I doing wrong?

Question

git

I am working on a project alone. From home and from the office.
Finishing work I execute add, commit, push.
Master branch by default.
But I can not merge versions on another computer.
git pull origin master and git pull output the following.

remote: Counting objects: 90, done.
remote: Compressing objects: 100% (90/90), done.
error: insufficient permission for adding an object to repository database .git/objects
fatal: failed to write object
fatal: unpack-objects failed

Answer 1

they write to you in English in white (or black):

error: insufficient permission for adding an object to repository database .git/objects
fatal: failed to write object

edit disk permissions.