Mast step came off

Hey guys, my mast step came off the other day on my daysailer II. One of the holes seems as though there is nothing for the screw to hold on to. It also looks like the mast step was glued down with something.
How should I fill the hole, and what should I use to glue the step back down?
I have waterproof 2 part epoxy putty. Would that do the trick? Also polyester resin and hardener.
Thanks!
How should I fill the hole, and what should I use to glue the step back down?
I have waterproof 2 part epoxy putty. Would that do the trick? Also polyester resin and hardener.
Thanks!