LINK PC ACCOUNT TO MOBILE
First of all, you CAN’T link your Plarium.com acc to mobile. I don’t know why, don’t ask me. Administrators has already answered here: https://plarium.com/forum/en/vikings-war-of-clans/technical-questions/39286_syncing-game-accounts/
BUT You can link your mobile version to Facebook Browser version.
1.So go to Facebook
2. download Facebook GameCenter (for example right here: https://apps.facebook.com/vikingsmobile)
3. or you can play online via Facebook Browser version of Vikings.
HOW TO LINK Mobile account to facebook read again here: https://plarium.com/forum/en/vikings-war-of-clans/technical-questions/39286_syncing-game-accounts/
You can't link plarium.com account to phone or facebook. It's two different worlds.
If u still have any question - feel free to ask