Both of them give you the same exact error? My suggestion would be to replace the Luma.3dsx in the "3DS" folder with a new one since they can become corrupt during a transfer. Next, I would check my SD card for bad sectors since it may not be able to read the payload. Also check your emuNAND partition to make sure it's not corrupt. If that's fine, then I would edit the "boot.3dsx" included in the Luma folder "menuhacks" and attempt booting straight to Luma from CTRBootManager (you may have to edit the offsets in the boot.3dsx), if that still doesn't get you to luma, I would get rid of the bootmanager and just use the vanilla "boot.3dsx" included in the latest Luma release. Boot mangers are only useful if you're using dual CFW like Corbeink/Luma. You can install HomeBrew on the HomeMenu in Luma, so it's unnecessary to use a boot manager to go to both from startup.