Fail to access Remote Workspace

None of my friends are able to access the remote workspace since 2021.2 update, everybody got disconnected from github and when we try to setup remote give

"Username or password is incorrect!"

"Make sure the username and password you entered are correct and that your user has proper permissions on the remote repository" 

- Even I'm not able to setup, we changed ours passwords so it's impossible of being it since we are able to access our project at github.com and see the file.

- Even on 2021.1 it's not setting up.

- On github everybody is tied as "collaborator"; we have been coding for months.

- We are using the right Remote Git Repository HTTPS URL