How to download free extensions?

For example, I want to download this free extension
store.modelio.org/resource/modules/java-...ner-open-source.html
But I can't download from that page because the download link is broken.

Hi there!
You can download the Java Designer module, as all the other available modules, directly from Modelio github at github.com/ModelioOpenSource/ExtensionsForModelio
Enjouy Modelio!!

Thank you. I also found the possibility to add modules without downloading them separately from the Internet as files, but uploading them to the project from the program itself.