Help with error:9

Hello everyone, we have the Ortur Lasermaster 2. It lasers motifs and fonts perfectly. As soon as we want to cut something, the following error occurs sporadically

Der G-Code wurde während des Alarm- oder Tippzustands gesperrt.
Auf oder in der Nähe der Linie 396:

The error comes in the middle of the editing process.

Can anyone help us?

We have already connected a short USB cable and tried a different power supply unit.

Thanks in advance for the help!

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