Discourse get broken

I just move my discourse from one hosting to other. Now i have really annoying bugs. How can I fix it?

I also noticed that if you wait 1-2 minutes, everything works fine. But as soon as you start several times to go out and come in a row. It breaks the login.

Can you describe the bugs with words? Videos are not only difficult to watch, they are not searchable.

Does your new server have as much ram and disk space as your old one?