** Trying to run Moon on old 3ds **

I have a o3ds running on 9.0.0.20U. i have the oot3dx hack to get into homebrew. Installed EmuNAND, installed Luma 6.5, also tried with rxTool. Tried to do all the Tutorials i could find. i'ts been 3days now and im able to play with low fps on citra but god damn this has become a personal fight and i can't find sleep anymore. i really Want it to run on this old fuckin 3ds but can't figure how to. i installed it with Nasa, FBI and BigBlueMenu, but EVERYTIME i got it installed. sun or moon, i got a blackscreen at the opening. Is there a super hero among you who can let me know what i can possibly have done wrong after all thoses days of searching ?

thanks