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I see, yes this is a glitch. I am terribly sorry for that...

There are two ways to fix the problem. One is to upload the functions_adopts.php file to your site and include it from the initializer class file. Another way is to modify the functions_items.php file, I've provided an attachment for this. Note that the functions are going to be 'phase-out' in the next few releases since the script is moving towards OOP.