Menu and news completely disappeard

[sunmoonqueen]

Hi. I'm running CMS Made Simple 1.5.4. I'm using PHP 5.2.8, and MySQL 5.0.45 . This is all working with Apache/2.2.3 (Debian) running on Linux. MenuManager 1.6, News 2.10.

Problem:
All the menu and the news have disappeared in the frontend. Even in the backend, the Menu manager and the news manager have disappeared. On the website, I do not see any menu, but I can access all pages directly when I put the url in. In the Backend, when I go to Extensions>Modules, on top of the page I get an error:
"ERROR: The CGExtensions module could not be found.
Warning: Cannot modify header information - headers already sent by (output started at /home/www/soez/modules/SiteMapMadeSimple/SiteMapMadeSimple.module.php:35) in /home/www/soez/lib/classes/class.admintheme.inc.php on line 171", but I think this error was already there long ago and might have nothing to do with the current menu problem.
I can still see what modules are installed, and both MenuManager and News are installed and active. On this page, suddenly in Extension>Modules, the MenuManager appears. But when I click on it, I get the following error:
"Fatal error: Call to a member function GetFriendlyName() on a non-object in /home/www/soez/admin/moduleinterface.php on line 125", and the MenuManager is again gone from Extensions>Modules. Actually, I opened the moduleinterface.php, and I has only 25 lines!

I have recently installed CMS Made Simple 1.6 in another folder for another website on the same server, but the problem appears within the old 1.5.4 installation. Could there be some interference with the two installations?

How can I get the menu back working soon? I get emails from all over the world, asking where the menu is gone.
Should I uninstall the MenuManager and install it again? Or will this produce any loss of data?

Please help me soon, thanks a lot!

[Jeff]

I would move your files to another directory and restore a backup (hopefully you have one). Then check and see if you website has been hacked.

[Jos]

Try searching for "ERROR: The CGExtensions module could not be found" in this forum. Most likely it has something to do with your config file

[reneh]

I had a similar problem after moving a site - since I forgot to correct all the paths in config.php.  /me Embarassing
Other problems can also be write permission on the /modules folder or other write permissions.

The apache error log is your friend here.