Cannot use a scalar value as an array MEGAMAENU

Please help.

Warning: Cannot use a scalar value as an array in /home/ ... /public_html/plugins/system/t3/includes/core/template.php on line 330

T3 Version 1.4.1

I have 2 sites with this warning. It happened when I saved a change while editing Megamenu from Template Manager

http://www.ausgolftech.com/demo/
http://orangetandem.com.au/