9.31.3 Can you answer these questions?

9.31.3.1 Switching to LuaLaTeX fails: Failed to load "luaotfload" module "database"

https://tex.stackexchange.com/landing/r/digest?cta=question&id=685096

I want to switch from plain LaTeX to LuaLaTeX. Unfortunately, I get an error right at the beginning: 
$ lualatex -synctex=1 -interaction=nonstopmode mwe.tex 
This is LuaHBTeX, Version 1.17.0 (MiKTeX 23.... 
[luatex] [texstudio]
 

asked by BjA~\[Paragraph]rn Engel https://tex.stackexchange.com/landing/r/digest?cta=user&id=195470 Score of 1

9.31.3.2 Style File to help pdftotext with -layout with text extraction?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=684957

I have written a long book in latex memoir. 
I now want to feed its content to a machine translator into another language (say, German).  I will use the automated translation for a first pass for a ... 
[text] [translate]
 

asked by ivo Welch https://tex.stackexchange.com/landing/r/digest?cta=user&id=25779 Score of 1

9.31.3.3 How can I group different equations into a single label using the amsmath package?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=685144

Using the align environment provided by the amsmath package, I am running the following code with the intention to produce one single label for these three equations: 
\documentclass[12pt]{report} 
\... 
[align] [amsmath]
 

asked by andrA~(c)s https://tex.stackexchange.com/landing/r/digest?cta=user&id=295764 Score of 1