Left Column and right column missing

I installed OpenCart v1.2.9 and my website now displays only the middle column and not the right or left. I tried changing templates with no effect. See www.hitepetsupply.com

Make sure you have the modules enabled in your admin section. Go to Extensions, Modules.

When I open "Extensions" it says Permission Denied. I had to change my access in the User Groups and that got me in. Thank you. That worked. So much frustration with such a simple solution.