I launched Minecraft on forge 1.12.2 with Dalek Mod update 48 and attempted to join DMU Public and received this Notification. http://prntscr.com/khj9ss

After that, I tried Update 46.2 And it did not work.

Last I tried Update 48 on Minecraft forge 1.12 did not work.

I then tried 1.12.2 again with Update 48, Still the same message, Please someone help me...!

Also, no Update 47 as the server told me. http://prntscr.com/khjg89

So

you got a message

that said the server requires you to have Update 47 and you have update 48

Correct me if I'm wrong, but I think you need

maybe

just

maybe

Update 47 to get on the server

You can find update 47.5 (more stable) on either curseforge or the discord

Just install update 47. You can find a link to that here.