Chrome Lighthouse bug
Chrome's Lighthouse said there was an error with the links on my page. I checked the links. I thought maybe I had some generic link text such as 'click here'. I thought maybe the problem was that one of links is hidden on mobiles. Then I noticed the tip on the error message: Required AnchorElements gatherer encountered an error: Cannot read properties of undefined (reading 'objectId') I found an issue raised with Chrome on 'github'. I tried removing non-breaking spaces from the page and the error went away. I will leave the spaces in and wait until the bug is fixed in Lighthouse.