Why are the pictures not showing up in the gallery?

Question

MODX

Hello. I had a very interesting and incomprehensible story. There is a site MODX Revolution The
pictures in the gallery are no longer displayed. Found an error. It was like this:
A condition was entered incorrectly in the connector.php file.

if (!empty($_REQUEST['action']) && $_REQUEST['action'] == 'web/phpsthumb') {
}

That is, it was not written phpthumb - but phpsthumb. Raised a copy of the site since September. It's normally written without s. The question is, how could this happen, given that no one ruled the scripts?
PS Photo module - Gallery.