Issues to push to github

[Haywhye12]

remote: Permission to Dufuna-CodeCamp/Dufuna-CodeCamp-21.git denied to Haywhye12
.
fatal: unable to access 'https://github.com/Dufuna-CodeCamp/Dufuna-CodeCamp-21.g
it/': The requested URL returned error: 403

help!!!

remote: Permission to Dufuna-CodeCamp/Dufuna-CodeCamp-21.git denied to ogoo-tech.
fatal: unable to access 'https://github.com/Dufuna-CodeCamp/Dufuna-CodeCamp-21.git/': The requested URL returned error: 403