Page Not Loading Correctly

[keirwtdavie]

I have added items to my presta store, however I have recently ran into an error which I have tested on multiple devices. I have tried to clear cache but still didn't work. 

The Error: 

Loading products works fine, I can click on them etc. however when I click on a product on page 2 for example or page 3, and then press the previous page button on the browser; I am faced with a bunch of code, that displays product details.

Prestashop 1.7

This occurs on the front end, the back end is working fine

Like So:

https://pastebin.com/wrKytLMh 

Thank You in advanced