pfSense

I'm trying to setup some traffic shaping but after going through the wizard I get the following error:

Fatal error: Uncaught TypeError: Cannot access offset of type string on string in /usr/local/www/wizards/traffic_shaper_wizard_dedicated.inc:717 Stack trace: #0 /usr/local/www/wizards/traffic_shaper_wizard_dedicated.inc(626): apply_all_chosen_items() #1 /usr/local/www/wizard.php(116) : eval()'d code(1): step8_stepsubmitphpaction() #2 /usr/local/www/wizard.php(116): eval() #3 {main} thrown in /usr/local/www/wizards/traffic_shaper_wizard_dedicated.inc on line 717 PHP ERROR: Type: 1, File: /usr/local/www/wizards/traffic_shaper_wizard_dedicated.inc, Line: 717, Message: Uncaught TypeError: Cannot access offset of type string on string in /usr/local/www/wizards/traffic_shaper_wizard_dedicated.inc:717 Stack trace: #0 /usr/local/www/wizards/traffic_shaper_wizard_dedicated.inc(626): apply_all_chosen_items() #1 /usr/local/www/wizard.php(116) : eval()'d code(1): step8_stepsubmitphpaction() #2 /usr/local/www/wizard.php(116): eval() #3 {main} thrown