Some error when plotting

Dear FLUKA experts:
When I plot, the program does not generate images and alerts me have plot error__"Gnuplot errors or warnings found Check Output window for additional messages ",I don’t know how to fix it.
the output is

Dear Tian,

Thanks for your message. As a first guess I would say that you are trying to plot an empty file (try to check if that’s the case). However, to give you a better answer, please attach the flair file of you project.


Deer Marco,
According to your suggestion, I checked my flair program and the output files and found that the error was caused by not using the DCYSCORE card when using the isotope particle source.
Thank you very much for your advice, which is very helpful to me.