Description
When you're attempting to change/update CMS >Footer Links > Edit you may encounter such error
Notice: Use of undefined constant DONT_MATCH_WITH_ITEM_MSG
 
Solution
http://www.viart.com/downloads/admin_footer_link-4.1.zip
 
Extract 'admin_footer_link.php' into 'admin' folder of your shop replacing existing file. Please do not forget to make a backup copy of the current file in case something goes wrong.