[Help]Player Kick for Walker movement

I have cracked korean version 10.9.5 oog walker, I log on my final server fine. but as soon as I click to move, it kicks me from server. I use this on my own server just for fun purposes... it says "player so-in-so kicked for walker movement"

Anyone know of a way around this? or why its kicking me beside the obvious?

Thanks for your help.