How to trace an error for the site that when goes wrong under Plesk Linux

When you facing a case that the site can’t accessible on the Plesk Linux Server, please console to the server using Ezeelogin :

Go to /var/www/vhosts/system/

# cd /var/www/vhosts/system/

and find the domain, i.e

# cd /var/www/vhosts/system/britamarabia.com/logs

you will see there is error_log file, you can use the command :

# tail -f /var/www/vhosts/system/britamarabia.com/logs/error_log