Crack in Plastic headlight brace top of headlight.

What is your question?

This brace is made of composite material and is about 5inches long by an ~inch wide and has a small bolt going through top and side. I know it is part of the headlight assembly and do not want to pay $450 for a brand new one (part only). What is best way to epoxy this thing and with what? Have extended warranty but doubt if it is covered.