Website troubles

Just wondering if anyone can assist me. Most of this website works flawlessly but I can't open the menu, it just stays semi transparent and blank, which means I cannot login which limits what I can do on it. So if anyone has any experience with this site or a similar one I would appreciate it.

https://robertsspaceindustries.com/

Also pledge for this, last chance for LTI. Shameless plug in there.

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