Super Mario Bros. and Super Mario Bros. 2 not working on Retroarch for Switch

[captain_obvious]

I'm trying to play the Japanese versions of Super Mario Bros. and Super Mario Bros. 2 on Retroarch. The ROM files I am using are Super Mario Bros. (J) (FDS Conversion).nes and Super Mario Bros. 2 (J) (FDS Conversion).nes from GoodNES_3.14_goodmerged2. Each time I try loading these games a screen appears with the text "Battery Error" and some garbled graphics. I have tried putting the file NstDatabase.xml in the directories SD/retroarch/cores/system/Nestopia UE and SD/retroarch/cores/system/Nestopia UE/BIOS.

Has anyone gotten these game to run correctly? What did you do?

 

[M7L7NK7]

Just use the actual famicom versions

 

[captain_obvious]

Fixed.