Can't play custom MAME ROM

[FedeKrum]

Hi !
I have made a custom frogger ROM file. (take a look at this thread about PHILMURR's bugs corrections)

I zip them and named a file froggerphilmurr.zip and drop it to the MAME from folder in recalbox.

Is obviously doing some sort of hash check because is telling me that the rom is not good.

2 questions:
Can I run custom roms on RCB MAME ?
Can that from have any name? (like froggerphilmurr.zip)

Thanks