-make sure you're using the latest version of CB Free. If you're not sure if you got the latest version, you can always download/install it again from our website as its been recently updated.
-next, change/update your password online here: https://www.comicbase.com/mycb/ChangePassword.aspx
*password requirements: at least 6 characters in length, include at least 1 number and 1 capped letter, don't use the # character
-lastly, launch the software and update your login credentials (internet menu>login information).
-see if you're able to post items for sale on AA. if you still have trouble, contact our support team directly at support@comicbase.com