Help Me Please, I Literally Can't Do Anything

So, i was doing the Santa's quest, when i jumped into the fireplace i got back in time right? soo, the problem is, i don't have any items now, i can't do any commands (besides /lobbv, which isn't helpful at all, also tried to re-join and re-started minecraft itself, but still stuck) already tried to /kill, but it says i can't do any commands, i tried to talk to the NPC, but nothing happens, please, help me, i started recently playing on Wynn and i don't want to stop cuz of a bug :(

 

What does your screen look like, can you see anything? What does it say when you try to do a command?

 

It sounds like you haven't finished logging in from the lobby, this happens to me sometimes when my connection is bad. Have you tried leaving it for a while to see if it finishes logging you in or checking your connection?