Error Warning template.php

I have installed the BuddyPress Docs 1.5 and wen I enter to de settings page it show me the error:
Warning: call_user_func() expects parameter 1 to be a valid callback, class ‘BP_Docs_Admin’ does not have a method ‘general_section’ in …/wp-admin/includes/template.php on line 1154
The plugin seems to work ok, but it looks weird on my template:
http://redpoema.com/wikipoemas/

Sorry for my english and knowledges, and thanks for all.

http://ww.wp.xz.cn/plugins/buddypress-docs/