attempt to index a nil value (g lobal 'l3kernel')

The following MWE leads (second run with lualatex) to an error:

\documentclass{article}

\usepackage{acro}

\DeclareAcronym{A}{
  short      = {AAA},
  long       = {Die Abkürzung AAA}
}

\DeclareAcronym{B}{
  short      = {BBB},
  long       = {Die Abkürzung BBB}
}

\begin{document}

\printacronyms

Hier: \ac{A}

Hier: \ac{B}

\end{document}

The error is:

(C:/PortableApps/Miktex/texmfs/install/tex/latex/translations/dicts/translation
s-basic-dictionary-english.trsl)[\directlua]:1: attempt to index a nil value (g
lobal 'l3kernel')
stack traceback:
        [\directlua]:1: in main chunk.
\lua_now:e #1->\__lua_now:n {#1}

l.19

?

Here the log-file:

This is LuaHBTeX, Version 1.14.0 (MiKTeX 21.12.10 Portable) (format=lualatex 2022.1.27)  27 JAN 2022 13:03
 restricted system commands enabled.
**./bug_acro.tex
(./bug_acro.tex
LaTeX2e <2021-11-15> patch level 1
Lua module: luaotfload 2021-05-21 3.18 Lua based OpenType font support
Lua module: lualibs 2021-05-20 2.74 ConTeXt Lua standard libraries.
Lua module: lualibs-extended 2021-05-20 2.74 ConTeXt Lua libraries -- extended c
ollection.
luaotfload | conf : Root cache directory is "C:/PortableApps/Miktex/texmfs/data/
luatex-cache/generic/names".
luaotfload | init : Loading fontloader "fontloader-2021-05-20.lua" from kpse-res
olved path "C:/PortableApps/Miktex/texmfs/install/tex/luatex/luaotfload/fontload
er-2021-05-20.lua".
Lua-only attribute luaotfload@noligature = 1
Lua-only attribute luaotfload@syllabe = 2
luaotfload | init : Context OpenType loader version 3.116
Inserting `luaotfload.node_processor' at position 1 in `pre_linebreak_filter'.
Inserting `luaotfload.node_processor' at position 1 in `hpack_filter'.
Inserting `luaotfload.glyph_stream' at position 1 in `glyph_stream_provider'.
Inserting `luaotfload.define_font' at position 1 in `define_font'.
Lua-only attribute luaotfload_color_attribute = 3
luaotfload | conf : Root cache directory is "C:/PortableApps/Miktex/texmfs/data/
luatex-cache/generic/names".
Inserting `luaotfload.harf.strip_prefix' at position 1 in `find_opentype_file'.
Inserting `luaotfload.harf.strip_prefix' at position 1 in `find_truetype_file'.
Inserting `luaotfload.harf.finalize_vlist' at position 1 in `post_linebreak_filt
er'.
Inserting `luaotfload.harf.finalize_hlist' at position 2 in `hpack_filter'.
Inserting `luaotfload.cleanup_files' at position 1 in `wrapup_run'.
Inserting `luaotfload.harf.finalize_unicode' at position 1 in `finish_pdffile'.
Inserting `luaotfload.glyphinfo' at position 1 in `glyph_info'.
Lua-only attribute luaotfload.letterspace_done = 4
Inserting `luaotfload.aux.set_sscale_dimens' at position 1 in `luaotfload.patch_
font'.
Inserting `luaotfload.aux.set_font_index' at position 2 in `luaotfload.patch_fon
t'.
Inserting `luaotfload.aux.patch_cambria_domh' at position 3 in `luaotfload.patch
_font'.
Inserting `luaotfload.aux.fixup_fontdata' at position 1 in `luaotfload.patch_fon
t_unsafe'.
Inserting `luaotfload.aux.set_capheight' at position 4 in `luaotfload.patch_font
'.
Inserting `luaotfload.aux.set_xheight' at position 5 in `luaotfload.patch_font'.
Inserting `luaotfload.rewrite_fontname' at position 6 in `luaotfload.patch_font'
. L3 programming layer <2022-01-21>
Inserting `tracingstacklevels' at position 1 in `input_level_string'.
(C:/PortableApps/Miktex/texmfs/install/tex/latex/base/article.cls
Document Class: article 2021/10/04 v1.4n Standard LaTeX document class
(C:/PortableApps/Miktex/texmfs/install/tex/latex/base/size10.clo
File: size10.clo 2021/10/04 v1.4n Standard LaTeX file (size option)
luaotfload | db : Font names database loaded from C:/PortableApps/Miktex/texmfs/
data/luatex-cache/generic/names/luaotfload-names.luc)
\c@part=\count183
\c@section=\count184
\c@subsection=\count185
\c@subsubsection=\count186
\c@paragraph=\count187
\c@subparagraph=\count188
\c@figure=\count189
\c@table=\count190
\abovecaptionskip=\skip47
\belowcaptionskip=\skip48
\bibindent=\dimen137
)
(C:/PortableApps/Miktex/texmfs/install/tex/latex/acro/acro.sty
(C:/PortableApps/Miktex/texmfs/install/tex/latex/l3packages/l3keys2e/l3keys2e.s
ty (C:/PortableApps/Miktex/texmfs/install/tex/latex/l3kernel/expl3.sty
Package: expl3 2022-01-21 L3 programming layer (loader) 

(C:/PortableApps/Miktex/texmfs/install/tex/latex/l3backend/l3backend-luatex.def
File: l3backend-luatex.def 2022-01-12 L3 backend support: PDF output (LuaTeX)
\l__color_backend_stack_int=\count191
\l__pdf_internal_box=\box50
))
Package: l3keys2e 2022-01-12 LaTeX2e option processing using LaTeX3 keys
)
Package: acro 2022/01/04 v3.6 typeset acronyms and other abbreviations (CN)
\g__acro_version_int=\count192
\l__acro_tmpa_int=\count193
\l__acro_tmpb_int=\count194
\l__acro_tmpc_int=\count195
\l__acro_tmpd_int=\count196
Loading module `bas

cgnieder / acro

attempt to index a nil value (g lobal 'l3kernel') #235