Fatal Error when trying to open Pokemon alpha sapphire

Enter a description of your issue here, in full detail.
When I start Pokemon alpha sapphire, Citra opens a popup message stating Citra encountered a fatal error, it says see the log for details.

System Information

  • Operating System: OSX
  • CPU: 8 GB
  • GPU: intel hd graphics 6000 1536 mb
  • Citra Version (found in title bar): Nightly | HEAD-8ca3862
  • Game: Pokemon Alpha Sapphire
  • Screenshot of Issue (include the full Citra window including titlebar):

Diagnostic Log
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citra_log.txt (8.2 KB)

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[ 10.060672] Service.FS core/file_sys/archive_selfncch.cpp:OpenRomFS:180: Unable to read RomFS

The ROM is encrypted. Please redump your game.