[Mobs won't spawn anymore]

Mobs randomly stopped spawning, this had a great impact on us because now our mob farms won't work as intended, please help me figure out whats wrong

[1.16 Nether update]

Ok, Thank you guys. My friends were wondering when Minehut would update the biomes. 

[1.16 Nether update]

21 minutes ago, iGalaxy said:

Minehut doesn't fully support 1.16 yet. It allows 1.16 players to connect, but servers still run 1.15.2. Minehut will support 1.16 once Paper and core plugins are updated to 1.16.

When will that be? I'm just asking not to be rude.