Your title is misleading. I doubt this is relevant to ysmenu. I use ysmenu with that file and pokemon platinum detects the cheats fine. I haven't used any cheats though, if that's your situation. Try removing the cheat file and see if it loads. That is wierd if that is the issue.
Please I need help with this. I just homebrew my old 3ds console and downloaded a CIA file, but after surfing through for only 10 sec or less this appears. please can someone help me? Thank you in advance.