Google has been notifying users to remove Google+ website integrations.
After seven years, Google decided to close down it’s social networking site Google+ after a significant privacy bug was discovered. The bug wasn’t the only reason. Google+ had low engagement and usage, especially compared to the other top social networking sites and had already begun to shed some features from the platform.
Originally slated to be sunset by August of 2019, the notification email announced that web integrations will stop working as of March 7.
If you haven’t already, remove G+ links from your website and any integrations such as the +1 button or Hangouts buttons.