Guild Wars 2

What is this? Everytime during a fight I constantly am getting stunned out of now where, when it shows up on my hud its a little purple box. kitten is getting old

Check your combat log to see what is causing the stun. It may be someone is throwing cogs at you. Cogs are a consumable item that can be spammed to permastun a group of people at range so that might be the cause.