pip stopped working, what to do?

Question

pip

In general, pip suddenly stopped working.
Pip3 works as usual.

This error is the same whether I enter pip, pip list, pip install "что-то", there is no difference. He just doesn't respond. With what it can be connected?
I understand that you can use pip3, but sorry, I really want to know what happened to the usual one, if it worked.
Thanks in advance.