Hello @vyacheslav.stadnichuk and welcome to the NIVIDIA developer forums!
I took the liberty of moving this post to the correct sub-category so it might get more attention from others with similar issues.
Your error log already contains the relevant information, you have a driver mismatch in your system:
-> The NVIDIA driver appears to have been installed previously using a different installer. To prevent potential conflicts, it is recommended either to update the existing installation using the same mechanism by which it was originally installed, or to uninstall the existing installation before installing this driver.
Please review the message provided by the maintainer of this alternate installation method and decide how to proceed:
The package that is already installed is named nvidia-470-470.
You can upgrade the driver by running:
`apt-get install nvidia-470-470`
You can remove nvidia-470-470, and all related packages, by running:
`apt-get remove --purge nvidia-470`
This package is maintained by NVIDIA (firstname.lastname@example.org).
(Answer: Abort installation)
ERROR: The installation was canceled due to the availability or presence of an alternate driver installation. Please see /var/log/nvidia-installer.log for more details.
Please follow the instructions in the README exactly and make sure to purge all old drivers (including
nouveau drivers) if you intend to install the latest NVIDIA drivers.
I hope that helps.