This started happening after I joined Skyblock Classic, is there a way I can just go back to the hub?
Try joining skywars.com and doing /servers from there If this doesn't work to get back to classic, me or another staff member will force teleport you to get you back online
Did this solution work in your case? If it didn't let me know a time that we can organise and I can teleport you to solve this (You can reach me on discord @ 52Phenomenon#9268 as it can be easier to communicate on there)
Same here, i have went on /server hub1 then went on the classic skyblock, after that it had disconnected me from the server, while i tried to re join its had got to the" loading terrain" and had" lost connection disconnected"