The Google Plus service was turned off on April 2, 2019.

Elementor still includes the Google Plus button as the default template when creating a new "Share Buttons" widget.

Proposal:

1. Keep the Google Plus button on any existing sites for backwards compatibility.
2. Remove the Google Plus button from new "Share Buttons" widget default template.
3. Remove the Google Plus button as an option from the "Share Buttons" widget.