Hi taucherphil,
I did a little homework. The name of the plugin is Aeytimes Product or Service Feedback / Comments Widget. For an immediate fix, browse to your plugin folder via FTP and rename the folder aeytimes-product-or-service-feedback to something else such as aeytimes-product-or-service-feedback-1. It doesn't really matter what you rename it. This has the effect of deactivating the plugin.
I had a look at the plugin and the permanent fix is easy - the author made a typo. Open the file called aeytimes-product.php in a plain text editor such as Notepad and close to the top you will see the following ...
class AeytimesProductRSS extends WP_Widget {
function AeytimesProductRSS() {
$widget_ops = array( 'classname' => 'aeytimes', 'description' => 'A widget displaying the latest comments of your idea on AeyTimes.' );
$control_ops = array( 'width' => 300, 'height' => 350, 'id_base' => 'aeytimes-product' );
$this->WP_Widget('aeytimes-product', 'Aeytimes Product or Service Widget', $widget_ops, $control_ops);
}
Pay attention to the above line that reads function AeytimesProductRSS()
Now, scroll to the bottom of that file and you'll see the following ...
function register_AeytimesSiteRSSWidget(){
register_widget('AeytimesSiteRSS');
}
add_action('init', 'register_AeytimesSiteRSSWidget', 1);
Pay attention to the above line that reads register_widget('AeytimesSiteRSS')
Do you see what he has done? A simple typo. The block of code above should read ...
function register_AeytimesProductRSSWidget(){
register_widget('AeytimesProductRSS');
}
add_action('init', 'register_AeytimesProductRSSWidget', 1);
Simply make the change I outlined above, upload the file and rename that folder back to its original name.
Or, if you don't want to muck about editing files I uploaded an edited version of the aeytimes-product.php to the WordPress Pastebin which you can download here.
Delete the original aeytimes-product.php file and upload the one I supplied. Then rename the folder aeytimes-product-or-service-feedback-1 back to its original.