How to fix fatal: Authentication failed for 'https://...' error?

Question

Bitbucket

I prepared everything for the commit transfer, but there was such a problem: after the git push origin master command, you need to enter a password - Password for ' https://[email protected] ':
But no matter what I enter, I get an error every time - fatal: Authentication failed for 'https://...'
I entered the password from the bitbucket account, the site admin, left the field empty... what am I not understanding here?

And I also tried to follow the link, where the error is, it says that I do not have access to this page ... how can I get it? Where did this even come from...