MyBB Community Forums

When i go to Cs-tr4cker.ir/admin i enter there is nothing written in it there are blank boxes when i click on a box then i need to login one more time and then the page does not come! Plz help

follow this guidance related to cookie settings

But what to do with The blank boxes and admin panel?

have you manually installed MyBB or used single click installation from web host panel ?
you may have to re-upload ./inc/languages/english/admin folder (or your language/admin folder) with contents

How to install themes?

^ see theme installation guidance here

Tnx for help!