进入bbs提交bug，请详细说明bug情况，感谢大家
A PHP Error was encountered
Severity: Notice
Message: Undefined index: single
Filename: templates/d1a0649684200d0cb03ebfa5dee3234ac1c8b75b.file.articles.tpl.php
Line Number: 91
A PHP Error was encountered
Severity: Notice
Message: Trying to get property 'value' of non-object
Filename: templates/d1a0649684200d0cb03ebfa5dee3234ac1c8b75b.file.articles.tpl.php
Line Number: 91