Hmm... try not to change the ROM header from the .ini (leave it BPRE). Then open your ROM in a hex editor, goto 0xAC and type 42 50 52 45 there.
If still not, where have you downloaded PGE? If you have downloaded it from the link from Gamer2020's signature, that is a new version of PGE. So, if you put the .ini MrDS provided replacing the new PGE's .ini, that ain't gonna load up stuff because MrDS' .ini is the old version of PGE. You will have to write up the offsets from the MrDS' .ini to the new PGE's .ini.
Why remove Fairy type?
I downloaded version 3.1. I thought that might be the issue, indeed.
I'll try downloading 3.0 or an earlier to check. This is where I downloaded it:
https://github.com/Gamer2020/PokemonGameEditor/releases
I don't like the later Generations. I liked some Pokémon from Generation IV, that's why I'm including it.
Don't know, new Pokémon don't seem Pokémon-ish. They don't seem as nice and original, like Generation I's. Same for Mega Evolutions.
It actually reminds me Naruto and Dragon Ball, where power has no limits. That takes the fun out of it, for me.
As for the Fairy type, it just comes in the "too much changes" package. I didn't like the idea (though it fit Clefairy), plus it beats Dragon. Please.