theme configuration error

There are so many errors coming when trying to configure the theme. It seems to work perfectly well from the front-end but throws all sorts of errors at the backend. Some of the errors are show below:
 

• warning: array_map() [function.array-map]: Argument #2 should be an array in C:\xampp\htdocs\diyehighschool\modules\system\system.module on line 1015.
• warning: array_keys() expects parameter 1 to be array, null given in C:\xampp\htdocs\diyehighschool\includes\theme.inc on line 1817.
• warning: Invalid argument supplied for foreach() in C:\xampp\htdocs\diyehighschool\includes\theme.inc on line 1817.

Please kindly assist.
 
Regards
Webxcell