VITCIE info: Can not connect to MySQL server

Time: 2018-11-16 9:01am
Script: /chineseheartlist.php

Error: Host '' is not allowed to connect to this MySQL server
Errno.: 1130

An error report has been dispatched to our administrator.
Fatal error: Call to undefined function sendmail() in /data/home/qxu1152560018/htdocs/include/db_mysql_error.php(2) : eval()'d code(1) : eval()'d code(1) : eval()'d code on line 38