UPS Plug-in causes fatal error

Hello,
I recently tried to change my shipping from the manual option to the UPS plug-in. When I activate UPS, any time I try to view the cart to checkout, I get the 'Fatal error: allowed memory size exhausted'. I notice looking through the forum this can happen with too many variants, but I have very few variants, and it only happens when I switch to UPS. Any idea on a fix?
Thanks!
Adam

Hi,

You must have a low memory limit on your hosting and the UPS plugin eats a bit too much memory.
Just increase the memory limit parameter of your PHP (you can do that in your php.ini or if you don't know, ask your hosting company) and that should solve the problem.