Wrong link output

Hi, first thanx for your easy to handle plugin!

But on the following page it is not working:
http://www.narzissenfest.at/de/category/presse/

e.g on pagination 2 the link http://www.narzissenfest.at/de/http://www.narzissenfest.at/de/category/presse/page/2/
is beeing created so how do i get rid of the wrong http://www.narzissenfest.at/de/ at the beginning.

Thanks ceomr

https://ww.wp.xz.cn/plugins/wp-paginate/