I don't know why you're trying to run YSMenu on this tbh. Go grab WoodR4 1.62 instead.
Reformat the SD card, make sure it's 2GB or less in size, and then download this kernel file: https://flashcard-archive.ds-homebrew.com/R4_original_M3_Simply/R4DS_Wood_R4_1.62.zip
Extract the contents to SD...