In admin/includes/functions/general.php set

//++++ QT Pro: Begin Changed code
require('qtpro_functions.php');
//++++ QT Pro: End Changed code


by


//++++ QT Pro: Begin Changed code
require(DIR_WS_FUNCTIONS . 'qtpro_functions.php');
//++++ QT Pro: End Changed code

on line 1597 aprox

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