SEMRush is telling me this link is broken in my site map – 404-2/?avia_forced_reroute=1 any ideas on how to fix that? I have my own custom 404 page enabled
Is that page set as your custom 404 page? If so then I don’t think you have to worry about anything. The likely reason for your tool telling you that there is a problem with the page is that it’s returning a 404 error, which a 404 page should do.