Can't get into Realms on Minecraft: Java Edition? Due to GDPR (http://minecraft.net/privacy/gdpr/ ) users under the age of 16 need parental consent to play on Realms. To set up parental consent on an account, visit http://minecraft.net/update-account .
I'm sorry you're having trouble! It's possible it's a temporary issue, but you can also visit this page for further help: https://help.minecraft.net/hc/en-us/articles/360035130931-Unable-to-login …. ^AS