Problem in tmcategories

[Soter13]

I have the following e-shop implemented with prestashop: www.e-access.gr

I gad no problems, but one day it stopped showing the subcategories form the central menu bar.

I haven't change anything and I don't know what to look for for solve it.

 

Also it stopped sorting in the product lists. It worked well too.

 

Please help me!!

 

Thanks in advance,

Sotiris