Can’t log in to my site admin panel

Hi!

I’ve noticed I can’t log on my site’s admin panel.

I’m absolutely certain the username and the password are correct. I receive no indication of error, the screen simply refreshes and I’m indefinitely stuck on the log-in page.

The site is fully visible.

Could it have anything to do with the newest WP update or B-Host’s purchase by Mythic Beast?

Best

Karolina

The page I need help with: [log in to see the link]