HI.
 
in line 30 it starts with:

#Set default root path. Might be needed to change if hosting provider requires
so
          $root                   = '';

the better way is to use the config['root_path'] like this:
#Set default root path. Might be needed to change if hosting provider
requires so
          //$root                   = '';
          $gCms = cmsms();
	  $config = $gCms->GetConfig();
	  $root= $config['root_path'];