The minecraft game wont let me play on realms with my friends

the minecraft game wont let me play realms with my friends, when i try to click on realms it says i need to update my info, so i did but after i did it says i may need to get the latest launcher but when i click it, it says sorry this Paige doesn't exist.  it also says i need to transfer my account but when i try it says this does not exist.