Error with FeedWordPress plugin

Sorry for poting this issue too many times, but maybe I posted in the wrong place originally.

I have installed FeedWordPress plugin on my blog server, I can retrieve the feeds, but I have 2 issues. 1) When I go to my blog page, I get an error in my web log:

File does not exist: /var/www/html/wp-includes, referer: http://www.formosa-usa.com/wordpress/

I can not find where wordpress is referring to html/wp-includes, which may be the reason why I am unable to add the feeds to a specific blog page.

Another issue is that when I go to wp-admin, I get an error:

Line: 22
Char: 2
Error: val() is null or not an object
Code: 0
URL: http://hostname/wordpress/wp-admin/*

The error is on all wp-admin pages.

I also want to know do you specify what page an rss feed will go to?

Thank you in advance.