That's very good to hear AND I really give you a suggestion to
never change your license code; 2F4Y especially does not seem to like it, and we administrators in general appreciate it too. So I invite you to write down the license code that you currently have (in case you generated a new one), and stick to that one!
Also I inform you that the screenshot you posted can actually still be seen when we restart the server, people that were on the server or that will be joining shortly after the reboot will experience that message. To work around it what you must do is join another Special Forces server (which has not been rebooted recently, so probably any in the list will do), start loading the map.
Then abort mapload and come back to Lost-Soldiers SF server: you will see that the invalid cd-key message now disappears and you can re-join. Thank you for updating us and posting pictures, that was very helpful and I can now also bookmark that picture.
Kind regards, hope to see you in Special Forces.
Staff Officer
S_h_a_r_k_93
P.S. if you have
Discord we sometimes notify people there, when there are good SF nights
if not, well, consider creating an account to stay in touch and participate more in our community discord channels