What happened?
The printer is showing the message: "Emergency stop invoked by G-code (M112)".
Error name: Emergency stop
Error code: #17510
This error message can be triggered during serial printing (e.g. Octoprint) and blocks the printer control.
How to fix it?
Temporarily disconnect from your Original Prusa XL any external device, reboot the printer, and try printing using a FAT32 formatted USB drive. See if a different error would occur while printing via USB drive, and check the guide relative to the new error.
Are you still having issues? Contact our support team and let them know that you have tried to fix the issue with these instructions. We will take it from there.