If you have a license that has not expired, review the following:

1. If your serial number has an expiration date, perhaps it has expired.
2. Ensure you are using the most recent version of Tinder plug-ins. If necessary download and install the current version for Mac.
3. Ensure the date on your computer is correct.
4. If the Ethernet (MAC) address of your computer has changed since you ran the installer, you may get this watermark. Re-install Tinder plug-ins using the installer, then re-enter your serial number.