Hiqueprogrammer

então está dando esses erros como faço pra resolver, eu quero entender porque disso Deprecated: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in /home/u570509733/public_html/system.php on line 7 Warning: mysql_connect(): Access denied for user 'u570509733_likes'@'10.1.2.61' (using password: YES) in /home/u570509733/public_html/system.php on line 7 Warning: mysql_select_db() expects parameter 2 to be resource, boolean given in /home/u570509733/public_html/system.php on line 8 Deprecated: mysql_query(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in /home/u570509733/public_html/connect.php on line 4 Warning: mysql_query(): Access denied for user 'u570509733'@'10.1.2.61' (using password: NO) in /home/u570509733/public_html/connect.php on line 4 Warning: mysql_query(): A link to the server could not be established in /home/u570509733/public_html/connect.php on line 4 Warning: mysql_num_rows() expects parameter 1 to be resource, boolean given in /home/u570509733/public_html/connect.php on line 5