Removing Melted Plastic from Trex Deck?

I have a heavy plastic container on my deck for cigarette butts. Somehow one of the butts did not go out and other butts started to burn. When I lifted the plastic container, the whole bottom was melted to the Trex deck. I got some of the hot plastic pulled off, not all of it, now that it is cool I can't remove it, I tried scrubbing it, and it's not working, I need help! Thank you.

By grandmaninnybug