The firmware inside the MMU3 unit has detected an error.
To fix this issue, restart the MMU unit
In case it persists, contact Customer support and provide them with all the details about how the error happened and the steps required to reproduce the issue.
If you have a question about something that isn't covered here, check out our additional resources.
And if that doesn't do the trick, you can send an inquiry to [email protected] or through the button below.