No worries. Thanks for responding! I’m always here to answer golf course mapping questions. The best place to start is the following wiki: https://wiki.openstreetmap.org/wiki/Tag:leisure%3Dgolf_course

Can you leave a comment here about which fairway you are getting that error on? You should be able to get a link to that specific option on the bottom of the left sidebar. Or could be that the fairway and green intersect each other. That is the most common problem and needs to be addressed first before grouping them. 