I had this issue too, and it wasn’t clear why but what worked for me, was checking if any of the links I had were loading via http instead of https which violates the “mixed content” policy. Run a diagnosis of your website with https://www.whynopadlock.com
I’m a paid user and will deactivate if this goes through. It does tremendous harm to queer, non binary, non monogamous and other vulnerable members of the site, not to mention women. If you consulted with some UX and safety experts you would have realized this.