i cant connect to the beta server could some one please help me

What error do you get when you try to join?

connection terminated error serverhost

Hmm I see the server is not offline atm. Are you logged in on DMU if you are in the mc main menu? There should be a grey button in the top right corner that says "login".

im logged in

also the flight panel crashes my game

The flight panel is currently disabled because of a bug. In U48 the bug will be fixed.

okay