GT would be the guy to fix you magazine for you; but after looking at the feed lips, I think it is time to retire it. Save the base for re-use or just use it to fill a mag pouch when/if you need to.
You might get adequate service out of it as is by only loading 5 rounds.
I "normally" shoot 5 shot strings, a hold over from long ago when I shot competitively, so it is just natural for me. 8 seems an "odd" number.
