Need Help Finishing Another Stage

[PAVGN]

I'm trying to make a stage with the Pirate Ship in Norfair, but I ran into a problem.

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The collisions are not in the same place as the model, and two of the characters don't spawn in the right place and die at the start of the match. How do I fix this? I also need to disable the big lava wave that comes from the background, and fix the lava level so It never rises or lowers.