they can't fix it that easly. they have to pay 2000+ dolars(not sure what type) for better servers. and there is not to many donations being send out to the devs. if you want better servers you would have to pay to help them afford it.
its a bug. they ai maybe bug out from someone being in backrooms or from you not being in a code. and if the servers don't even exist at the time then the monsters are pretty much dead until the servers are back.