Easyblog and JA Multilingual

Hi Guys,
as promoted here: http://stackideas.com/blog/multilingual-for-easyblog
I tried to setup my blog in two languages: German (Standard) and English.

I setup all, and all things would be translated, BUT:
There seems to be a problem with JA Multilingual and Easyblog.
I know, it´s not YOUR Product, but you have promoted it, so I ask.

Problem: When I try to translate, all blogposts will be copied AND they have the same ID and i cant translate them. Please read the problem which another user has, too here:
https://www.joomlart.com/forums/topic/easyblog-translation-integration-is-not-working-correctly/

They now give a codesnippet which brokes my backend.
Maybe you can have a look at their code and provide the correct one.
https://www.joomlart.com/forums/topic/easyblog-translation-integration-is-not-working-correctly/#post-830531

I really would be happy, as our website should go online tomorrow

best regards