A PHP Error was encountered

Severity: Warning

Message: is_readable(): open_basedir restriction in effect. File(/dev/urandom) is not within the allowed path(s): (/data/wwwroot/m.yinheyuedu.com/:/tmp/)

Filename: core/Security.php

Line Number: 603

Backtrace:

File: /data/wwwroot/m.yinheyuedu.com/application/core/Security.php
Line: 603
Function: is_readable

File: /data/wwwroot/m.yinheyuedu.com/application/core/Security.php
Line: 1009
Function: get_random_bytes

File: /data/wwwroot/m.yinheyuedu.com/application/core/Security.php
Line: 190
Function: _csrf_set_hash

File: /data/wwwroot/m.yinheyuedu.com/index.php
Line: 315
Function: require_once