I have a BeTheme theme installed on my site, where the WPBakery Page Builder plugin is installed by default. I am updating the plugin from this forum - there are no problems with activation. (See the screenshot).Thanks for your help, @dgpalych , but it keeps on saying "WPBakery Page Builder license not found or invalid. You can manage your licenses at support.wpbakery.com or purchase a new license at wpbakery.com". All is marked with the red ribbon...
Perhaps your theme does not provide for the installation of this plugin by default.
What is the name of your topic?
Show a screenshot of the warning and copy its text separately in the comments.