There was a problem. There is a Python project, which with Pyinstaller has been converted from PY to EXE. After that, my anti-virus considers this file with a virus and removes. What to do with it? (If the program is not a virus)

Answer 1, Authority 100%

This happens because pyinstaller unpacks files and a python interpreter in the TEMP folder, so antiviruses do not like such programs. You can also get the source code of your program if you are compiled via pyinstaller.
Try using Nuitka – https://pypi.org/project/nuitka/