使用IE登陆后显示错误信息

Warning: chdir() [function.chdir]: No such file or directory (errno 2) in /usr/local/www/htdocs/funcs.php on line 18

Fatal error: Call to undefined function: bbs_ext_initialized() in /usr/local/www/htdocs/funcs.php on line 19

求高手帮助，谢谢。
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FROM 61.187.8.*