Warning: mysql_connect(): Headers and client library minor version mismatch. Headers:100337 Library:30121 in /home/arkabahc/public_html/numbers.php on line 2

Warning: mysql_connect(): Access denied for user 'arkabahc_abduser'@'localhost' (using password: YES) in /home/arkabahc/public_html/numbers.php on line 2
I cannot connect to the database because: Access denied for user 'arkabahc_abduser'@'localhost' (using password: YES)