In lifeboat skyblock my inventory is full of lapis lazuli i cannot move or throw it

recently i started playing server lifeboat skyblock. i started mining and got lot of lapis lazuli and other stuff. i can move or throw other stuff but cant move or throw lapis lazuli. it is immovable and my inventory is getting full of it.

i even reset my experienc and island but the lapis lazuli is still in inventory.