43rd WFV COBRA

Yes , the one i get when i buy DCS-10C , which worl perfectly in A-10C , but here when i donwload latest DCS wordl instal path for A-10C and run multiplayer i got this problem with login ( i inserted same acount as on DCS A-10C) . When again try register acount (insert right Key from A-10C which i have in acnount payment ) it will come with this error.

Hi guys i have a folowing problem , a cant login to lobby because of Invalid CD-key , in single player i have activated ´DCS-A-10C and there is no problem , but when i want to login in multiplayer in default there is inserted wrong Key and i cant change it , i try deactivate and again activated but with no succes , in multiplayer there is still inserted wrong key and i cant change it and thanks to that i cant login.