I have problem with youtube video. The video cover is black and I cannot click on the video. I have the same problem in two different web pages.
I have the latest version of Enfold.
You are not running the latest version of the theme, could you try updating the theme to the latest version (5.4.1) to see if that helps please? https://kriesi.at/documentation/enfold/how-to-install-enfold-theme/#theme-update.
Please refer to this if you haven’t registered your theme license yet: https://kriesi.at/documentation/enfold/theme-registration/
Please install the Envato Market plugin: https://www.envato.com/lp/market-plugin/, copy the API key from Enfold theme options > Theme Update, paste it into the Envato Market settings, and check the Theme tab for the update. API keys are replaced with Personal Tokens so I’m not sure if that would work but it is the only way to receive the update without having to purchase the theme again.
If that doesn’t work, you would need to purchase a license to update the theme.