Discuz! System Error

Too few arguments to function discuz_session_close::fetch_all_by_fid(), 1 passed in /home/www/xingyun.org.cn/source/function/function_group.php on line 281 and exactly 2 expected

PHP Debug

No.	File	Line	Code
1	forum.php	67	require(%s)
2	source/module/forum/forum_group.php	49	grouponline(%d, %d)
3	source/function/function_group.php	281	discuz_session_close->fetch_all_by_fid(%s)
4	source/class/discuz/discuz_session_close.php	147	break()

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