My ESP has broken

Or more specifically the ability to turn it off has. I felt the urge for a quick get away at some lights so turned it off, as I did it flashed up on the dash for a split second then went away. now when I press the button to turn it off I get no light or message so I'm assuming its in a constant state of on and hopefully not a constant state of off.

Has anyone else had this or know how to fix it ? i was thinking it might just be a fuse but thought I would ask.
 
try disconnecting the battery for a while, but make sure youve got your radio code