How to Clear Cache Pages in Social Networks Facebook and VK

When updating the Artcoast website, we faced the issue of erroneous cache of pages on social networks Facebook and VKontakte. In our case, covers and titles were changed that needed to be updated in the FB and VK cache. But sometimes, when you try to share a post or page on Facebook for the first time, the cover may not load or the title is missing for some reason, the data remains in the cache of the social network in this form.