You gotta love how some canoes are built. This particular one has a Kevlar structure but with a thickened resin core. Most of the time this works fairly well. The problem is when you hit something hard, like a rock, and the resin core fractures. It often delaminates internally and there is nothing holding the inner and outer laminate skins together, so its a soft, floppy spot.

To fix it one of the skins needs to be ground off, the fractured core picked out or ground out, refilled, and new skins laminated over top. Then it all needs to be sanded smooth and given a finish. At this point most people opt for a shot of spray paint that is a near match as this is much cheaper than going through the work of colour matching gelcoat and polishing it to a gloss that matches the hull.