Forum test forum control panel issues with plugins
 

I created a test forum on a separate database to test plugins and packages before installing on my live site. Everything turned out fine. The entire forum, cms, blog functions all are operating perfectly on the new database. Looks just like the real forum.

I started uploading plugins. The only one that worked was the VSA Chatbox, a simple xml upload with no control panel menu addition. All of the others (VaultWiki, THS Wiki, v3arcade, addonchat - each added and uninstalled one at a time to test) create unusable control panel sections. I can see the menu for them, but when I click on any item in those menus - I get Internal Server errors. Nothing shows up in the error logs that gives any clues.

I've run through the forums and tried all kinds of fun stuff, adjusted all of my settings in the options and double checked my .htaccess and config files to make sure nothing is going awry there. All looks good.

Any ideas why the plugins won't show up on my admin control panel?