Read this post, please: https://www.cubecraft.net/threads/using-labymod-read-this-before-reporting.78406/
And you was banned for the anti cheat. You can contact CrazyManJR via discord, he will ask you some things, and maybe he can give you other oportunity
https://www.cubecraft.net/threads/using-labymod-read-this-before-reporting.78406/