Warning: include(slug.php): failed to open stream: No such file or directory in /home/hotellcc/sneve.cc/functions.php on line 2

Warning: include(): Failed opening 'slug.php' for inclusion (include_path='.:/opt/alt/php56/usr/share/pear:/opt/alt/php56/usr/share/php') in /home/hotellcc/sneve.cc/functions.php on line 2

Deprecated: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in /home/hotellcc/sneve.cc/config.php on line 40

Warning: mysql_connect(): Access denied for user 'sneveuvu_Hotell'@'localhost' (using password: YES) in /home/hotellcc/sneve.cc/config.php on line 40
I can't connect with MySQL server