I checked out v1.16.2 of the forum and was running node version 15.12 when I encountered the same error.
I downgraded to node version 14.6.0 and now this error is not coming up.
I hope this info can help anyone.
I am currently using NodeBB to run a community forum and now I am looking at integrating a Drip Email tool into the forum.
Are there any recommendations on which tools are the most campatible with NodeBB?
Please find a list of popular drip email tools here.
Looking forward to a positive response!