Midrub version 0.0.8.4 Update 5
Midrub version 0.0.8.4 Update 5 is available and can be downloaded from the administrator panel. In this update i have changed the Pinterest's Api version and now anyone is able to share pins on Pinterest.
You just need to turn your Pinterest account in business.
I have updated the configuration article for Pinterest https://www.midrub.com/articles/how-to-configure-pinterest