order total fatal error

[tonibarcelona]

help me, please!!!!!
All was ok, but today y see on clickinkg at modules-order total:

Fatal error: Call to a member function on a non-object in /var/www/vhost/bellezaisis.com/home/html/shop/includes/modules/order_total/ot_gv.php on line 29


What´s wrong?

[tonibarcelona]

Don´t worry about this...
After power off computer and re-entering at zen-cart... no problem, all is ok!!!
I don´t know why, but i have read a lot of similar situations to other people that suddenly were solved "automatically"...
maybe is the version of php, maybe the system of storing sessions...
i don´t know!