As of March 1, 2020, the WP-Prosperity WordPress theme is deprecated.
What this means is that the theme will undergo no further development and will no longer be updated or supported.
This support site will be accessible in READ-ONLY status until December 31, 2020, after which point it will be taken down.
Going forward, you would be best-served by transitioning to another WordPress theme.
I recommend Avada. It’s one of the most popular WordPress theme ever developed.