One DVMHD machine gives an error code E13. The machine software version is DVMHD V3.15.
What should I do to overcome this error and play the video?
I've checked the official user guide provided by the developers and although the errors are mentioned along with other, there is also no explanation about it on how to correct it. The only thing you can do is to restart the device or perform a factory reset. You can do that using the instructions on the user guide posted below.
After the PDF file has been opened, press CTRL + F and type reset to identify the line that teaches you how to reset the system.