Envato Market plugin gets the latest theme files from Envato and needs to access your wp-content/plugins folder in order to perform the update. There are no issues with it as it’s already been tested and used successfully from many users.
You have a ‘Forbidden’ message. That’s why we suspect you may have access rights limitations regarding third party apps. The access rights on a plugin folder can be checked in your server’s side. If you can, you can check them yourself or ask your host provider to check it for you.
Or you can keep on updating theme manually by replacing new updated theme files directly into wp-content/themes.
