In a Cpanel server, when you go for the option phpMyAdmin under WHM you might end up with this error :-
=================================
cannot start session without errors, please check errors given in your PHP and/or webserver log file and configure your PHP installation properly.
=================================
The problem is with the session path value in the php.ini for phpMyAdmin. The php.ini used for phpMyAdmin can be found in the path /usr/local/cpanel/3rdparty/etc/phpmyadmin/php.ini
Change the value of session.save_path FROM :-
session.save_path = /var/cpanel/userhomes/cpanelphpmyadmin/sessions
TO
session.save_path = /tmp
and restart Cpanel after making the change. 
