In the latest patches for Ship Simulator, which are also included in the Ship Simulator Add-On, VSTEP has blocked license keys that are illegal and/or spread over the internet.
The game will therefore ask for a valid Ship Simulator (not the Add-On) license key.
It seems that both your Ship Simulator license keys have been found spread on the internet. You can request a new license key by sending us either a copy of your receipt for Ship Simulator or a photo of your Ship Simulator Box where the license key is clearly visible. These items can be emailed in an attachment to info@shipsim.com
After validating their authenticity we will email you a new license key.
Sjoerd Nota: Do you see the License Key menu item in the game's main menu, if not, the above solution is not intended for you.