conflict with Joomlatwork cache component

I'm trying to use Joomlatwork cache component but I'm facing a conflict with SEF Advance :

my links goes from this :

www.mysite.com/computers/buy

TO

http://205.205.205/26-computers/56-buy

and i get this error on some part of the page :


Warning: Invalid argument supplied for foreach() in /home/*******/public_html/components/com_sef/sef.php on line 0

when i turn off the Joomlatwork cache component and clear the cache files links go back to normal

any idea what's wrong ?

regards.

URLs like 26-computers/56-buy are not SEF Advance links, they are J1.5 core-SEF links.
So the cache component must be turning off SEF Advance somehow and turning on core-SEF.

I would have to take a look at that component's code to tell you what's wrong but right now you can only turn off cache component. If it's of great importance for you send me a mail, I can take a look on that on custom work basis.