On 18 Mar 2018, trader_4 wrote in
alt.home.repair:

I can't tell if a piece is missing or not. If not, I've used crazy
glue for same kind of repair. What do you have to lose? If it
comes apart again, you can try more complicated repair. If
missing a piece find a piece of plastic to bridge it, then crazy
glue or fast epoxy.

No, nothing's missing yet, which is why I'm eager to repair it before
it gets worse and pieces start to fall off.

I like your idea or a plastic bridge. It should be something tough like
the original material, as I think that area probably gets road debris
thrown at it, and it gets scraped by things I might run over.