Emulators aren't launching

Ive been trying to emulate da and 3ds games through emudeck and emulation station, but I can't seem to get the ROMs to launch?

I went through the emudeck set up, and set emulation station as my front end and also installed melon ds and azahar. I also downloaded the ROMs online and tried placing them in the ds and 3ds ROM files respectively I think I got a ds bios online and put it in the ds bios file.

But when I open emulation station, it recognizes them and I can see the names, but it doesn't seem to launch when I click on it?

Any help would be appreciated, I'm very new to emulation...