Please help with mysterious redirect…

I’m having a redirection issue that is related to a specific plugin (I’ve already posted a request for help with that forum), but since I’ve deleted the data associated with it, deactivated it, and deleted it, the problem still exists. That leads me to believe I need to look at the core for a root cause.

I started to notice a problem after using the Widget Entries plugin for a bit. The home page of my site suddenly began redirecting to a widget I had created using the plugin called “testing”. In other words, upon going to http://www.example.com/, WordPress would redirect to http://www.example.com/widget/testing/

Widget Entries uses post types to do its thing. But I don’t know how to remove a post type. Nothing appears in the functions.php file for it.

Where else can I look to remove this redirect? .htaccess doesn’t have anything in it related to this that I can see.

RewriteEngine On
RewriteBase /

#uploaded files
RewriteRule ^(.*/)?files/$ index.php [L]
RewriteCond %{REQUEST_URI} !.*wp-content/plugins.*
#RewriteRule ^(.*/)?files/(.*) wp-content/blogs.php?file=$2 [L]
RewriteRule ^(.*/)?files/(.*) wp-includes/ms-files.php?file=$2 [L]

# add a trailing slash to /wp-admin
RewriteCond %{REQUEST_URI} ^.*/wp-admin$
RewriteRule ^(.+)$ $1/ [R=301,L]

RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule . - [L]
RewriteRule  ^([_0-9a-zA-Z-]+/)?(wp-.*) $2 [L]
RewriteRule  ^([_0-9a-zA-Z-]+/)?(.*\.php)$ $2 [L]
RewriteRule . index.php [L]

php_value max_input_time 200
php_value post_max_size 500M
php_value max_execution_time 200
php_value upload_max_filesize 500M

<IfModule mod_security.c>
<Files async-upload.php>
SecFilterEngine Off
SecFilterScanPOST Off
</Files>
</IfModule>
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# END WordPress

Please help me with this. It’s delaying my site being able to launch.