permission denied

Hi,

I updated my Opencast from 1.5.6.4 to the newest 2.3.0.2.

Everything is OK but when I modify any module I get the page with Permission Denied.

I don't know how to fix this.

I just known under the section Extension doesn't have item Modules. And I can't find where it is?

Somebody can help me?

You need to have access and modify permission to view pages in opencart.
This is very common rule in opencart.
You need to go to system - users - user groups - admin - edit.

And assign permission to pages. If you are yourself main admin.
Then do select all for access and modify permission. And then try again.