Error : 2 : /var/www/html/core/messages/sendmessage.php

/var/www/html/core/messages/sendmessage.php line 5

include_once(sup/email/msgnotification_email_class.php): failed to open stream: No such file or directory
Error : 2 : /var/www/html/core/messages/sendmessage.php

/var/www/html/core/messages/sendmessage.php line 5

include_once(): Failed opening 'sup/email/msgnotification_email_class.php' for inclusion (include_path='.:/usr/share/php')
Error : 8 : /var/www/html/core/messages/sendmessage.php

/var/www/html/core/messages/sendmessage.php line 13

Undefined variable: g_conn