SIP Extensions form blank

Ok here is a wird one. I had to reinstall the server from scratch after you know. Well I took the latest release and the only issue I had was when going to add sip extension the form is blank page. I up graded to beta version no help. All other extensions when added work fine.

Of corse I need sip ext… anyone can help me please

Just installed latest distro and find I canot create any extensions. The generic sip type when submit button is pressed just give a blank page. When any other type are selected the page comes up and allows you to fill in info but when submited just get a blank page and nothing is saved.
could this be a php problem ?.
I have entered data into Trunks etc without a problem.

kind regards

And possibly here if you still have issues