Can not pull the git repository

I’m using 2 computers to develop my web app. One of them can push and pull the git repository correctly though, the other can not pull it especially. And I made branches and deleted them…now it’s messed up.

To solve the mess, I created a new project and tried to clone it to the 2nd computer. But this didn’t work either.

I wanna clean my 2nd computer and clone it to this machine, in order to develop my app from different computers. How can I use the same repository from two different machines?