Hello MinJi,
Could you please check the generated MedDRA version folder, does it have all of the listed files?
pt.asc, soc.asc, llt.asc, hlt.asc, hlgt.asc
If the version folder doesn’t have any of these files, please delete it, restart the app, and install MedDRA again following detailed instructions:
https://www.pinnacle21.com/projects/validator/configuring-meddra
Thanks,
Philipp