Website Breaks after enabling Minification

Couple of issue to look at:

1) Looking to improve the sites optimization, however cannot enable minification as it's break the site, especially in the following page:
Media page - /gallery/
VIP Lounge - /all-access/ page

Would like to know which exact file is causing the issue in the above pages.

2) Once minification is corrected, would like to know if there are anything else that could be improved within the site that would help with site loading fast, and with improving optimization.