Everyone calm down. According to the github they're all working on this. Quit your whining, and for now just learn to manually save using /save-all before you log off for the day.
Imagine being a minehut dev and having to deal with a bunch of kids spamming them about not being able download or save. It is frustrating.
I say that we just wait it out for now and manually save, and give those devs a break. Not everyone can do what they do on a daily basis after all.