Hello All, In: LuaMetaTeX, Version 2.03.3 ConTeXt ver: 2019.12.12 19:35 MKIV beta fmt: 2019.12.12 int: english/english I get the following error message: tex error > error not related to input file: tex error > tex: ! Emergency stop tex error > lua: ? tex error > mps: - Sorry, no MWE available. What does this message mean? [1] shows only an empty page. To this point my programm does all what it should with the exception of creating a grey pdf-file-page. My pdf-programs are okular and xpdf. In: LuaTeX, Version 1.11.2 (TeX Live 2020/dev) ConTeXt ver: 2019.12.12 19:23 MKIV beta fmt: 2019.12.13 int: english/english I get a "*" instead of the error message above. And again my program does all what it should, but a grey pdf-page too. Shure, there must be an error in my program. But where should I look for it? I tried several MWEs, but they all worked at their best. Please, any ideas? Best wishes, Rudolf [1] https://wiki.contextgarden.net/error_not_related_to_input_file