Corsa-B.uk - Vauxhall, Opel and Holden Corsa B Owners Club

the flasher on my indicator stalk doesnt work anymore, one of my (stupid) friends kept flashing with it really quick and it just stopped, does anyone have any ideas what has broke? and how to fix it?

tried changing the indicator stalk but it didnt do anything

btw the actuall full beam works

thanks