Two errors in LanguageTool 6.4 on LibreOffice 24.2, Ubuntu 24.04

With the LanguageTool 6.4 extension, I am regularly getting error messages on LibreOffice 24.2, Ubuntu 24.4. Please see the screenshots. Are these errors known? Is there any work around?

As a side note: The error messages are extremely wide and it is necessary to manually move the window far to the left, to actually find the close button.

System: It is a new installation of Ubuntu 24.4 with the preinstalled LibreOffice version and the LanguageTool extension from

Ubuntu 24.04, Wayland, Java: default-jre, openjdk-21-jre

Libreoffice (X86_64) / LibreOffice Community
Build ID: 420(Build:2)
CPU threads: 16; OS: Linux 6.8; UI render: default; VCL: gtk3
Locale: en-CA (en_CA.UTF-8); UI: en-US
Ubuntu package version: 4:24.2.4-0ubuntu0.24.04.1
Calc: threaded

EDIT: Here are new instructions how to report bugs for the LanguageTool LibreOffice extension, which is now called Writingtool: Moving LibreOffice add-on to its own repo - #7 by Fred.Kruse