I have upgraded to Java 8.19.1, 64 bit. When a try to install to Libreoffice, I get this error:
“Insert duplicate implementation name org.languagetool.openoffice.Main”. What does this error message mean, and what needs to be done to fix it?
Sounds like there’s an old version of the add-on still installed in LibreOffice. You could try whether this approach helps.
Here’s a more detailed answer: update error - English - Ask LibreOffice