magento 2 Error "An error has happened during application run. See exception log for details"

[alex_chang1]

Dir Sir,

chown -R www-data:www-data /var/www/magentofolder/

Could you let us know what is "www-data" ?

Thanks 

[COOLGIO77Y1c62]

Hi,

Thank you. I had same issue "An error has happened during application run. See exception log for detail" and used your command for Ubuntu, "sudo chmod -R 777 var/* generated/* pub/static/", which worked for the frontend but unfortunately not for the admin which is giving a 404 error

Not Found

The requested URL was not found on this server.

Any idea how I can go about this?

[COOLGIO77Y1c62]

Resolved the issue - I previously deleted the .htaccess file in the pub folder while trying to solve the issue that has now returned, which is the css not displaying normally for <domain>/admin

Trying to find a solution to this issue now