I have installed WHMCS bridge and everything works except for the ordering function. The theme developer can't find and issue and want it fixed ASAP. It's a themefuse theme, I can't see any errors with Firefox debugging and I've played with the jQuery settings to no avail.
Looking for someone with a solution and history of working with WHMCS and WordPress.
Try to use a basic wp theme and see if all go fine first.
The only issue i find on my theme is checkout option. When click on checkout it's go to product list and from Whmcs bridge is an issue with Jquery of this cart and they advice me to change to another cart design.