In short, I installed various extensions, and then (after I installed several of them) other extensions stopped installing, errors began to appear. I did all the installation of extensions through the composer.
Initially, the errors told me that I did not have a git path or something (but I did install extensions successfully before without it). I installed git, got a token, entered it, but still the errors continued.
Now they look like this
(maybe there is something personal so I used some black paint)
My site is working fine, but I can't work with Composer because I keep getting an error during installation. I checked several extensions, constantly about the same errors. Everything worked well before.