Warning: session_start(): open(/var/lib/php5/sess_t2b9lm0nhgr0elc4olvp8qrb22, O_RDWR) failed: Read-only file system (30) in /var/www/connect.php on line 33

Warning: mysql_connect(): Can't connect to MySQL server on '172.17.0.1' (111) in /var/www/includes/db.class.php on line 44

Warning: mysql_errno() expects parameter 1 to be resource, boolean given in /var/www/includes/db.class.php on line 44

Warning: mysql_error() expects parameter 1 to be resource, boolean given in /var/www/includes/db.class.php on line 44
Error : 
Warning: Unknown: open(/var/lib/php5/sess_t2b9lm0nhgr0elc4olvp8qrb22, O_RDWR) failed: Read-only file system (30) in Unknown on line 0

Warning: Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/var/lib/php5) in Unknown on line 0