Hello! I wanna Port Divine RPG to Forager

Can I do it?

Well based on this section

You CAN:
Download DivineRPG and use it
Make a public Minecraft server with DivineRPG installed
Include DivineRPG in a modpack if you have permission from the development team, if you link back to the mod's forum thread, if you credit the team, and if you agree to remove the mod from the pack at any time if you are told to by the DivineRPG team
Make youtube videos showing DivineRPG gameplay as long as you link back to the mod's forum thread
Use the source code as a reference for educational purposes
Modify and recompile DivineRPG for PERSONAL use
Fork DivineRPG on Github and write a pull request

You CANNOT:
Redistribute DivineRPG without permission from the team
Claim that you made DivineRPG
Redistribute modified versions of DivineRPG
Copy ANY of DivineRPG's code and/or assets for use in a different project
Put DivineRPG in a modpack without permission```

And also seeing that since its another game it has to be rewritten all from scratch it should be fine. you cant copyright an idea. You can copyright code but the code cannot be reused

No

You can make your own mod on Forager, with your own unique assets. But not DRPG