Why doesn't git push heroku work?

Question

Heroku

I wanted to deploy my app to heroku and got this error:
$ git push heroku master
remote: ! WARNING:
remote: ! Do not authenticate with username and password using git.
remote: ! Run `heroku login` to update your credentials, then retry the git command.
remote: ! See documentation for details: https://devcenter.heroku.com/articles/git#http-git...
fatal: Authentication failed for ' https://git.heroku.com/vpolyakov-nuxt.git/ '
I saw that many people have such an error, but I did not find the answer, no matter how I googled. heroku login works fine. However, this does not solve the error. Repeated heroku login several times to no avail.
If suddenly someone knows how to solve this I will be very grateful. Thank you!