I want to log in with my King account not with my Facebook.

Hello @Kostantinaaa and welcome to our wonderful community!  It is very easy to do.  First, before you start playing the game click on the little pink wheel in the lower left corner and then click on the green wheel and at the bottom of the next screen it shows the Facebook Icon and says Log out.  Just click on that and then click on the 'log out' button and you will now be logged out of Facebook. Then click on the pink wheel again and click on the gold community button, it will ask for a nickname (you can enter your same nickname) and then will ask you to login with your email account you have registered with the kingdom. Once you have done that you will now be playing just through your kingdom account and not Facebook. 😊🐨 

Hello @Kostantinaaa - the following link tells you how to link your Facebook and King accounts.  Once you have done that - hopefully you can then log out of your FB account and still be on level 750.

https://community.king.com/en/candy-crush-soda-saga/discussion/244238/can-i-sync-my-progress-between-facebook-and-king-com#latest