First login to your server using ssh

A. ssh phpmind@phpmind.com
B. Enter proper password

Then switch back to the root and use this command.

Benefit of “-f” option is as you hit your php page in browser terminal will auto refresh errors and you can see most recent errors.

tail -f /var/log/apache2/phpmind.com-error.log

Your Path may be diffrent! I have different sub domains parked in my server. So this is my error log path in LAMP.

Hope it will work for you.