Apache Optimization Option & Move Javascript to the end won't work

[aymeric69001]

Hello everyone,

I posted here because I am nearly sure that the problems I have comes from my theme not being fit.

So, the problem is the following: I cannot switch to Yes, "Move Javascript to the end" nor "Apache Optimization"

 

I have forced the 2 corresponding values in the database, setting them to 1 (PS_JS_DEFER and PS_HTACCESS_CACHE_CONTROL), but did not change anything.

My theme is not an official Prestashop Theme, and a lot of modifications has been made. As it is written on the blue background notification above (in french here), the theme should be compatible with Prestashop 1.4+ (My shop is Prestashop  1.6.1). So I uploaded the zip file of the theme here https://validator.prestashop.com/ but  I received this error message:

Quote

Error!
Main class not found.

I know that modules must have a class to operate, but a theme ?

So, do you have any idea how I could resolve this issue of 1) forcing the 2 optimization options to work 2) making my theme "compatible" with Prestashop

Thanks a lot

Aymeric