An exception occured while bootstrapping the application.

Zend_Session::start() - /var/www/html/assur/library/Zend/Session.php(Line:482): Error #2 session_start(): open(/var/lib/php/sessions/sess_numso2v354n0cockintl2cv6u6, O_RDWR) failed: No space left on device (28) /var/www/html/assur/library/Zend/Session.php(Line:492): Error #2 session_write_close(): open(/var/lib/php/sessions/sess_numso2v354n0cockintl2cv6u6, O_RDWR) failed: No space left on device (28) /var/www/html/assur/library/Zend/Session.php(Line:492): Error #2 session_write_close(): Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/var/lib/php/sessions)
Stack Trace:
#0 /var/www/html/assur/application/bootstrap.php(6): Zend_Session::start()
#1 /var/www/html/assur/index.php(23): require('/var/www/html/a...')
#2 {main}