Add media button not working!?

Hi there,

Anyone know what the issue is?
Add media button does not work on posts. But it does work on pages.

Below is what i’ve tried:

• Some people were suggesting adding
  define(‘CONCATENATE_SCRIPTS’, false ); to the config but that didnt work.
• I also turned of all plugins but no luck.
• I changed the theme for a moment and it DID work.

So I’ve identified that the issue is the theme.
so does anyone know which file might be the issue and how to fix!?

Thanks ??