I wonder what the name of the female outfit looks like a bikini but with lava, looking like the volcanic area

Was it any of these. Some of them have alternate colors and be dyed, I think.:

• https://pso2.com/news/scratch-tickets/seasidevacation
• https://pso2.com/news/announcements/beachwarsbeachwear2020
• https://pso2.com/news/announcements/freshfindsshop0805

This might be a longshot, but do you mean Innocent Cytus? It's not a swimsuit, but I could see it looking like lava + it's skimpy like a swimsuit:

If so, that's from the Fallen Heroes SG Scratch. There's another version with more clothes (Viel Cytus) but it looks even less like a swimsuit.

@AdrianMiguelBarbosa Might be Duskwake that you are referring to, but I'm not sure. You could always go through all of the previous scratch tickets, via the news/announcements section, and find the exact one you are looking for.