Help Please

Hey everyone i'm in need of some help pretty bad!
I'm fairly new to the server and have absolutely fallen in love with all you guys and the wynncraft servers! I have recently purchased VIP+ even! But for some reason when i went to go log in today and connect to a world i get taken to wear im prompted to pick a class but instead i just continually fall through the world in abyss.. I have tried everything i can think of from redownloading minecraft, to restarting my computer, turning the WynnPack on and off but still same thing
It's odd because i can log in using any other account and play just fine but my actual account i use to play just keeps on falling through the world!

Please if any of you know the fix help me out!!!

 

Put this on GitHub, there's a bug section on the main page that'll redirect you to it.