Your license info allows you to activate WishList Member on any URL you own.
If you are having issues activating WishList Member with your License Key and Email Address, please check the following:
1. Check for invisible spaces before or after the License Key or Email Address you are entering into the fields.
If a space is added to in the fields, the plugin will not activate.
2. Check that the input fields have not been switched.
Example: please ensure that the license key has not been inputted into the email address field and the email address has not been in-putted into the license key field.