@sjuro54. Thanks for posting. What version of Easy Folder Listing Pro do you have?
Updating via the Joomla Update System was added in version 3.3, so if you have a lower version, you will not be able to update that way. You also need a valid order number that is within the 1 year of purchase for you to have an active subscription for updating.
If you do have a valid order number and version, then you should be able to update via the Joomla update system.
You may also update by logging into ValorApps.com and downloading the software, and then installing it on your site.
I copied the order number from the order confirmation, where it was all uppercase, and the number I sent you was copied directly from the options screen, so there must be another explanation. We’ll see next time you release an update.