UPDATED: Now themes are independent from application with the use of Actions and Filters :D .. The branch WP-Like is not available for public usage but you may contact me if you want a copy of it.
There folowing method _ci_object_to_array defined in Loader.php used on line 300 which is supposed to be extended from Codeigniter core loader library, But unfortunately this method has been removed from CI versions greater then 3.1.2 which caused the exception method undefined in greater versions Codeigniter. I copy the function from CI core Loader.php and paste in MX Loader function which fix the issue. Kindly update the code in bucket so other users can not face the same issue in latest versions of Codeigniter.
There folowing method
_ci_object_to_arraydefined in Loader.php used on line 300 which is supposed to be extended from Codeigniter core loader library, But unfortunately this method has been removed from CI versions greater then 3.1.2 which caused the exceptionmethod undefinedin greater versions Codeigniter. I copy the function from CI core Loader.php and paste in MX Loader function which fix the issue. Kindly update the code in bucket so other users can not face the same issue in latest versions of Codeigniter.