eMMC Used 100% - What's next?

Hi! My eMMC shows 100% usage. I’m running Home Assistant on HA Green.
What does this mean, and what should I do next?
Please advice.

It means you need to setup a new drive as the eMMC storage is end of life and will die. if you don’t already have a backup of your configuration then I suggest to make it and put it on a USB for restore on the new drive setup.