Enable Lightbox for Images, other major problems of Sahel template

I tried to add a filtered gallery
1- this template doesn’t have a filtered gallery
2- although I enable Enable Lightbox for Images, it doesn’t show in the lightbox see the link below:
3- I am not happy to use this template
4- I tried to edit this page **https://sahel.qodeinteractive.com/tiniri/ ** but as you can see everything changed " http://fancyeventsparties.com.au/cakescategories/ "


Contact with your purchase item author hope they will helped!