
 %PGPLOT, Unable to read font file: grfont.dat
 %PGPLOT, Use environment variable PGPLOT_FONT to specify the location of the PGPLOT grfont.dat file.
 %PGPLOT, Cannot open output file for PPM plot


  Error opening output file: output/kaart_20230325_0000_0700_0_h_   .ppm,  aborting...