After update second language points to random article?

Hi people.

Everything was working fine, but after some updates, when I click Deutsch(german) the url goes to some random page.

Website is http://www.ossaw.at.

On the top part there is Srpski(Serbian-default) and Deutsch(German)

Please help 🙁

Using latest Qtranslate and WordPress.

https://ww.wp.xz.cn/plugins/qtranslate-x/