Hey, usually this occurs when you have either
• Just purchased a Minecraft account
• Just changed your Minecraft username
• You're using a cracked version of Minecraft
These are the most common issues that occur when users get this message, here is how to solve them:
• Log out of your minecraft account and log back in using the correct details
• Unfortunately, Minehut doesn't support cracked accounts we require our users to have the full Mojang edition of Minecraft.