Delete "/Nintendo 3DS" on your SD card (consider cleaning it so all you have is "arm9loaderhax.bin" and "/luma/payloads/<hourglass9, emunand9, godmode9,decrypt9>"). Restore NAND backup (from a working state) with hourglass9. -> That will fix it if you're NAND backup is correct and your SD card isn't faulty.
But if that doesn't work, try ctrtransfer to 9.2 (and cleaning SD card).
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I feel like the most probable cause is something messed up in the Home Menu's ExData. But the NAND restore should take care of any other possibilities.