SMILE one colored screen issues

[Croakomire]

I'm using SMILE to create my first hack and i came across this problem.  After i fixed the enemies so they were not jumbles of CRE, whenever i entered certain rooms (mainly rooms by the ship as well as bubble mountain) the screen either went black, purple, or green and then froze (the gauntlet just froze mid-door transition) do you guys know of any ways i could fix this issue?