You haven't done anything wrong. This is a thing with MenuQue, not Mod Organizer, MO just catches it and tells you. Basically, MenuQue includes two files, MenuQue.dll, which contains the plugin "OBSE_Kyoma_MenuQue" and OBSE_Kyoma_MenuQue.dll, which contains "OBSE_Kyoma_MenuQue_OLD", the latter of which is incompatible and causes the error. Why is it included? No idea. Is it necessary? Also no idea. Maybe? The new plugin might access it somehow, but I have no clue. I do know that it doesn't cause any issues with the game, though. OBSE sees that it's incompatible, writes that to the log and then ignores it, so no harm done.