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As root, or someone with root privileges. Go to var then enter ‘chown -R user:user www’. If you want root to be able to access www enter ‘chown -R root:root www’. This will make sure that root has access to the files.
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<br>Enter ‘chmod -R 777 /var/www’ to change the permissions of the files.
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I’ve found this page via google.
NEVER SET 777 RIGHTS TO /var/www
It’s unsafe and your site will be hacked.
Follow this guide, for example, solution is in the end of page. Or look here
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