Alert Key: 2171 Unknown exception

Hello Guys.

My printer is an Ender 3 V3 KE.

In this site: https://www.eclipson-airplanes.com/ they have some nice aeromodels. One of them is free (wolf), I downloaded this model. In folder they share the STL files and GCODES. As there are so many sensible atributes, about printing with LW-PLA, concerning about the weight, I chose to print directly from GCODES through pen drive, because the eclipson guys put all parameters as flow and all others adjusted in the right way, to make the aeromodel flyable and resistent.

Today I bought the aeromodel FOX. So, trying to print, in the same way which I did with wolf, (putting gcodes in pendrive), I got the error, from printer: Key 2171 Unknown exception.

I know they sliced the files in Cura. As the Wolf project, but I don’t know the reason which I can not print the gcodes directly. I opened one file of both projects comparing the header in notepad, and they are similar. I could not find anything that could be so diferent.

I tryed to slice in criality, but, in the begining, I could see, that it was not working nice and stoped the print.

So, do you have any suggestion to share with me?
There would not be a problem for me, if I need to edit all gcodes, but I need your help to know, what change I must do.

Thanks for your support.
BR.

Double check your slicer, you select correct machine.

I have printed lots of things.

Thanks for your support.
BR.