Thank you for your work! Now I managed to install Ovirt 4.4.10 version using iso image.
In the beginning, I tried updating repositories, clearing dnf cache, and restarting the
installation, but I couldn't.
When I download a new iso and run from scratch I managed to install it.
I have one more question.
If I'll want to update ovirt. Will I have a possibility to update it without
reinstalling from iso again?