Re: A phpBB to bbPress database converter
The topic resolved thing is probably because that was written for an older version of bb which had that in it by default. I think installing the forum support plugin will add that column, worth a shot anyway?
https://bbpress.org/plugins/topic/16?replies=7
Otherwise you could edit the php file and remove the bits about the topic_resolved column (remember to back up the original file in case it doesn’t work!).