FATAL ERROR - Could not read from remote repository: what to do?

Question

git

There is such an error in sourceTree:

[email protected]: Permission denied (publickey).
fatal: Could not read from remote repository.

having found many answers to this question, nothing worked,
I created a new key through the console, copied it and put it on github and he approved it,

but after even approval + restarting the program + computer and even doing the operation again with the same outcome, nothing happened.
resources used:
- https://stackoverflow.com/questions/12940626/githu...
- https://ru.stackoverflow.com/questions/496816/git-...
- https://github.com/ facebookresearch/deepmask/issues/23