This is the error message :
 error: cannot lock ref 'refs/remotes/origin/master': unable to resolve reference 'refs/remotes/origin/master': reference broken
    From https://bitbucket.org/abc/abc
     ! [new branch]        master     -> origin/master  (unable to update local ref)
when I try to pull then it shows "Complete with errors, see above", I forgot what I did before so it result this error came up after I do pull request. What should I do ?
 
     
    