What does the M70 error message mean for a left labeling machine with machine code KM-ASSYM5-02?

How do I recover from this error on a left labeling machine with machine code KM-ASSYM5-02?
This error often occurs when the labeling machine runs out of labels or label stock. To solve it, ensure that the label machine has enough labels or label stock, and that the labels are properly loaded into the machine. Check the machine's settings