Confirm button problem

Really I’m facing a problem that is soo bad, i’m trying to make some updates to my freepbx, i go to module admin and hit upgrade then i select packages needed to be download, but when i try to hit confirm it doesn’t respond.
But really the cancel button is work.
Please help me.
Thanks in advance…

What version of Free PBX are you using Ahmed Bakhiet Abdel-Hafiez ?

Hola, thanks for reply
i’m using Freepbx and i’m making some upgrade to 2.8 beta
So, when i turns into FreePBX Beta 2.8 this button is stopped.