Warning: mysql_connect(): The server requested authentication method unknown to the client [mysql_old_password] in /home/democr2/public_html/projects/textcompare.php on line 43

Warning: mysql_connect(): The server requested authentication method unknown to the client in /home/democr2/public_html/projects/textcompare.php on line 43
I cannot connect to the database because: The server requested authentication method unknown to the client