Homebrew Need some help with NDS installation

[Dranucus]

Hello i just recently bought and installed CFW on my New 3DS LL(yeah the japanese one) and have been trying to install some .NDS games on it using the forwarder method(i think thats what its called) but im having a problem where it dosent install the exact wording is:
" an error has occurred:
Unable to mount CTRNAND or load the CTRNAND FIRM
Please use an external one.
Press any button to shutdown"
have no idea what that means. The thing is that i initially did successfully did install world ends with you, pkmn ss and pokemon renegade hack by mistake along with pkmn platinum which came up corrupted. After trying to delete the renegade mistake and install platinum everything went to hell. So any help would be appreciated.

 

[RandomMan25XX]

I'm going to be civil and not call you names, but you CANNOT install DS roms to the 3ds, you must use a flashcart or TWiLightMenu++ to play DS titles, that is the only possible way, I don't care what anyone might have told you otherwise, that's impossible no matter how hard you try