Molottaja

Hi! I was wondering if someone could help me with a few problems I am experiencing. When I start the game I am instantly greeted with a message in the top left corner saying I am running an unsupported version of KSP even though I am running 1.12.3. When in the main menu i get an kopernicus install error which I have tried to fix by reinstalling the game and kopernicus, removing other mods and making sure I have harmony installed. I am also stuck eternally in the loading screen with the planets spinning freely, I tried to fix this according to the troubleshooting guide. Any help would be greatly appreciated :)