can not join realm

What I expected to happen was...:
i click tab realm and go play happy

What actually happened was...:
it says that my account is not up to date but when i go to minecraft.net by using the link it says that i am alreaddy up to date so i go look at realms but still get the same message 

edit: i can also not change my skins

Steps to Reproduce:
1. go to your realms
2. posseble you get a message
3. click