How to use eskdx in XeLatex (xeTex)?

Question

TeX

Good afternoon.
I am writing my Latex term papers in accordance with ESKD, but I am not satisfied with the standard work of fonts, so I tried to transfer my work to the xeTex field. Used this github.com/welldan97/xetex-eskdx template. Everything is more than satisfied, but when you try to use "-" in the service fields, an error occurs

/.document.tex.swp:12: Undefined
 control sequence.

<XeTeXinterchartoks> \hskip \z 
                               @skip
l.12 \maketitle

Sample file in Google.Drive