can't add products (prestashop 1.7)

Question

I can't add products in PrestaShop 1.7, when I want to add pictures doesn't allow me, also its show me the old categories that I had already deleted, also when I put the price doesn't give me the TTC price automatically, its something like the javascript is disabled, how I can solve this problem?

Answer 1

try clear cache ( Advanced Parameters -> Performance )