Hi Philsho,
Using enderpearls teleports you, when teleporting, the server could think you are flying by that (Like pets, boats etc)
I would recommend you don't worry about it; as you will not be in trouble if it auto kicks you, unless you were actually flying etc)
Try and throw the Enderpearl directly above the block, throwing it on blocks its self could cause you to glitch inside of it somehow I believe.
Hope this helps.