Error logging into phpMyAdmin?

Log into your server via ssh and run the following commands:

mysql -u root-p
CREATE USER 'newuser'@'localhost' IDENTIFIED BY 'password';
GRANT ALL PRIVILEGES ON * . * TO 'newuser'@'localhost';
FLUSH PRIVILEGES;

NB Please change the newuser and password part to match your preferences You will be asked to enter your root password when you run the first command

Login via phpMyadmin using the newuser and password