Do not worry; there is no issue or bug, as this Protection is only for beginners. When your Base reaches level 6, you will no longer be a beginner.
Before you upgrade to this level, the system will send you a message informing you about it. You will have the choice to upgrade immediately, lose the protection, or wait until the time has expired.
Why did I lose my new base armor when I upgraded to level 6?
Last Updated: 121d