go to module settings -> Main Settings -> Select Product tabs = «Custom theme with tabs on product page for Prestashop 1.7»
We configure product tabs for standard prestashop theme:
1. open file by FTP: /themes/classic/templates/catalog/product.tpl - line 149 - 177
add code in the line 175:
{hook h='productTab' product=$product}
2. open file by FTP: /themes/classic/templates/catalog/product.tpl - line 179 - 218
add code in the line 216:
{hook h='productTabContent' product=$product}
3. go to admin panel -> Advanced Parameters -> Performance -> click on the button Clear cache
4. See result on the product page: