I followed the configuration steps as outlined in the FAQ. Went all well I've created the various amount of coupons ect. I then turnt on gift certificates in the modules> order total section in the admin.

I know have missing modules including the gift certificate module I only have the three below left and this error at the top -


The three modules I am left with -

Code:
COD Fee      
Discount Coupon      
Group Discount
and i am left with this error above these -

Code:
Fatal error: Call to a member function on a non-object in /home/x13just/public_html/includes/modules/order_total/ot_gv.php on line 49
If someone could help me please that would be excellent, i've only really started out with this and I have tried searching the forum and the FAQS.

Thanks Jade!