Mysidia Adoptables Support Forum - AdminCP issues! Fatal Error: Class Registry

Code:

Fatal error: Uncaught exception 'Exception' with message 'Fatal Error: Class Registry either does not exist, or has its 

include path misconfigured!' in /home/content/43/10587843/html/adoptables/classes/class_loader.php:83 Stack trace: #0 

[internal function]: Loader->load('Registry') #1 /home/content/43/10587843/html/adoptables/classes/class_initializer.php(106):

 spl_autoload_call('Registry') #2 /home/content/43/10587843/html/adoptables/classes/class_initializer.php(45): 

Initializer->initialize() #3 /home/content/43/10587843/html/adoptables/index.php(68): Initializer->__construct() #4 

/home/content/43/10587843/html/adoptables/index.php(78): IndexController::main() #5 {main} thrown in /home/content

/43/10587843/html/adoptables/classes/class_loader.php on line 83

Please explain this... it's probably connected to my previous issues with paths on a secondary domain... but I can't figure out where to fix this one....

and if I do this:
http://www.fixmyfarmville.com/adopta...incp/links/add

instead of this:
http://fixmyfarmville.com/adoptables/admincp/links/add

I get a 404 error page:
http://fixmyfarmville.com/adoptables...rdocs/404.html