Retroarch DOS 3ds: cannot push NULL or empty core info into the playl

Hello.

i want to play dos game on my 3ds.

i got an official copy of RAMA from the creators SIERRA.

i got an dosbox converter found online that ripped the cd’s and converted the files to use with dosbox.

now i get this error while trying too load the exe or bat… :

cannot push NULL or empty core info into the playlist

i already tried setting audio off? is it possible i miss something ? i reallly need this game too load :frowning: