citra region manifest is missing
In order for us to provide better support, we need to see the log generated by Citra. This guide will walk you through how you can obtain the log file: How to Upload the Log File.
Dump the region manifest from your 3DS, and in future, please fill in all the support details & give the full log.
Some games require you to dump certain files from your 3DS. Please refer to our System Dumping Guide.
The plan is to eventually replace the system files with open source alternatives so a 3DS is not needed.