2
Your saying this happens just on the home page?
If your XOOPS site is working normally on all the other pages, are there any blocks runing on the home page that you do not have displayed on other pages within your site?
If so, you may have a problematic module block, but that would be hard to determine at this point until you run a little more troublshooting efforts on your end.
Let us know how it goes.
XOOPS Community Support