CreeperWarrior15

Hello, today i crashed after i used a item called "Test Item". i know, it was a nooby mistake, but i had to. also, i found this thing called 'Volleyball court marker, and when i us it, i lag insanely bad (Thanks, mac) and soon crash. So, what are these items? some items left from a removed mod?

Ingame Name:CreeperWarrior15 Age:Sorry, Dont want to do this part(security reasons) Why you want to join:I have looked for a aotbt server, and i really like this one because of the no banned items. I love some of the mods in this pack(Minions,Mr.Crayfish,ect.) and a lot of servers ban those items. Location:NJ How well do you know this mod pack:on a scale of 1-10, probably 8. i am know most of these mods from other packs. Do you agree to the rules?Yes!