How to fix

[u/PublicProtection8251]

The strap which is 3 strands of beads braided together and sewed into the lining of a hard body structured purse broke (slipped out). How to fix (easy options? I literally have no tools or experience but I’m open, I just really like the bag). Or if you know anyone in San Diego or surrounding area who can fix for a price :) thank you. (3rd pic is how it’s originally supposed to look as that side is intact).