论坛的搜索功能用不起来了?????

淮水安澜

最近在论坛搜索框中搜索时,一直出现iscuz! System Error
•您当前的访问请求当中含有非法字符，已经被系统拒绝
PHP Debug

•[Line: 0022]search.php(discuz_application->init)
•[Line: 0071]source\class\discuz\discuz_application.php(discuz_application->_init_misc)
•[Line: 0552]source\class\discuz\discuz_application.php(discuz_application->_xss_check)
•[Line: 0355]source\class\discuz\discuz_application.php(system_error)
•[Line: 0023]source\function\function_core.php(discuz_error::system_error)
•[Line: 0024]source\class\discuz\discuz_error.php(discuz_error::debug_backtrace)
不知何故,不知其他征友遇到过没有????