Google has mailed this to me
Q&A issues detected
Search Console has identified that your site is affected by 1 Q&A issues:
Top Errors
Errors can prevent your page or feature from appearing in Search results. The following errors were found on your site:
Either 'acceptedAnswer' or 'suggestedAnswer' should be specified
I learned from previous posts members made, the error happens when a topic has got no reply yet