Is the wrong version installed? Run npm i --production to ensure the proper composer version is installed.
Otherwise, perhaps the issue has been fixed in a newer version of NodeBB... what commit are you on?
@julian said in Duplicate posts importer-phpbb:
NodeBB to my knowledge properly keeps count of topics and posts... if it doesn't, please do let us know
Seems not ok if i change values in database, it keeps the wrong count in all stats