To all of you asking for permission, you can edit the Ash Gray ROM without metapod23's permission. It's not metapod23's legal property.
The files can be 100% recovered by downloading an Ash Gray ROM off of the internet, and opening it up in certain programs such as AdvanceMap, PGE, unLZ-GBA, and the Overworld Sprite Editor Rebirth Edition. ('m only covering the first quarter of programs to recover the files from the ROM.)
guhbro, if you truly are metapod23, (Which I highly doubt that you are.) use the programs I listed to pick up Ash Gray where you left off.
And, if you didn't know, when signing in, click forgot and enter your email to recover your password.
--MAGIKARP