Ultimate SEO: Warning

[plundercore]

I've searched the support thread but cannot find a post refering to the same error.

Could someone please help solve this:

 

Warning: call_user_func(tep_reset_cache_data_seo_urls): First argument is expected to be a valid callback in /...catalog/admin/includes/functions/general.php on line 1199

 

I've just installed Ultimate SEO and it seems to work fine except this warning which won't go away.

 

Thanks a lot,

Peter