EndlessScroll stop working

Everything were working perfectly for 2 days and suddenly stop working. I change all the settings I delete the plug in and reinstalled but still not working. When pressed More categories it just refresh the page if is automatic don’t even load more. I ended showing all the categories changing the default number of categories showing in one page from 3 to 20. If this problem is fixed you can count on my 5 stars because I do like it.