I've just upgraded to v3.7.3 today and as usual after upgrading I'll check to make sure all are fine and working as usual. The strange thing is, out of the 3 categories, 2 appears to have problem and return "Not Found" while the 3rd category works just fine.
I'm not a tech guy so hopefully I'm not alone with this problem. I've search the forum and found nothing close to what I'm experiencing now.
Any help is very much appreciated.