contact bersa support for a replacement.
bersas are euro type guns (brazil i consider euro in this respect) all such guns arent like american types. we use harder metals for slide stops euros use soft metal. they dont use the stop to release the slide like we do so extended use of letting the slide release with the lever wears it out.
"Gun control: The theory that a woman found dead in an alley, raped and strangled with her panty hose, is somehow morally superior to a woman explaining to police how her attacker got that fatal bullet wound." — L. Neil Smith