使用 shuthesis 模板时出现 You can't pop an empty literal stack for entry XXX 怎么办？

问题描述：
请问一下，运行 BibTex 的时候出现如下错误：
Database file #1: reference/refs-UTF8.bib
You can't pop an empty literal stack for entry Dyakonov_2010
while executing---line 2446 of file gbt7714-numerical.bst
...
(There were 5 error messages)

我找到了有问题的参考文献，但我不知道问题在哪：
@book{Dyakonov_2010,
author = {Dyakonov, M. I.},
title = {半导体中的自旋物理学},
publisher = {科学出版社},
address = {北京},
edition = {1},
series = {半导体科学与技术丛书},
pages = {394},
ISBN = {978-7-03-028286-6},
year = {2010},
type = {Book}
}

复现该问题的 MWE 如下。

\begin{filecontents}{refs_2022_05_08.bib}
@book{Dyakonov_2010,
   author = {Dyakonov, M. I.},
   title = {半导体中的自旋物理学},
   publisher = {科学出版社},
   address = {北京},
   edition = {1},
   series = {半导体科学与技术丛书},
   pages = {394},
   ISBN = {978-7-03-028286-6},
   year = {2010},
   type = {Book}
}
\end{filecontents}
\documentclass[type=doctor,openany,pifootnote]{shuthesis}
\usepackage{shuthesis}
\begin{document}
\frontmatter
\tableofcontents
\mainmatter
参见文献 \cite{Dyakonov_2010}。
\bibliographystyle{gbt7714-numerical}
\bibliography{refs_2022_05_08}
\end{document}

其中 shuthesis.sty, shuthesis.cls, shuthesis.cfg 在这里下载到：https://github.com/BlueFisher/shuthesis

使用 bibtex 编译上述 MWE.tex，错误提示如下：

$ bibtex MWE
This is BibTeX, Version 0.99d (TeX Live 2022)
The top-level auxiliary file: MWE.aux
The style file: gbt7714-numerical.bst
Database file #1: refs_2022_05_08.bib
You can't pop an empty literal stack for entry Dyakonov_2010
while executing---line 2446 of file gbt7714-numerical.bst
(There was 1 error message)

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