Google Shows Imaginary Title Tag

[Kaltiro]

Hello friends, I have a problem that I have been unable to solve for a long time. In Google indexes, my tags end with (- Knight Online) instead of my website's name as it should be. I have researched this extensively but have not been able to find a solution. I would be very grateful if expert friends could help me with this issue. Website address: https://www.technobios.net/