I also have this problem… Have tried deactivating WordPress SEO which many suggested to fixing their problem to no avail. I looked at my web developer console when having this problem at I see this error: “Failed to load resource: the server responded with a status of 500 (Internal Server Error)”. The url causing this error is this: https://publisherplugin.google.com/_/getconfiguration?siteId=my-site-id-here&site=my-site-url-here&hl=en_US
