Cannot change any settings or reset worlds: Internal Server Error!

Hiya Mojang.

 

I just renewed my subscription and I currently can't change any settings on my realms account aside from switching worlds. This means I cannot create new worlds, or change the default "peaceful" settings to regular Minecraft. Upon trying to do any of this, I'm met with the fun "Internal Server Error (500)" and nothing more.

 

Can you look into this? Thaaaaaaaaaaaaanks