Problem #1 - Outdated UX
Remember splash pages? That pointless additional click before entering a website? I'm not entirely sure as to what the purpose of a splash page was to this day although they existed alongside animated Flash intro sequences (read: design posturing) as some sort of prelude to what you actually came here for.
Manchester United still think this is a good idea. I'm sure they have obligations to sponsors and commercial partners but that's not what is happening in this space (currently broken on the live site). It's a gateway to the real stuff behind “Enter Website” which is inexcusable in 2018.
Suggestions: Remove this page.