Category filtering not working with multilingaul

hello,
i m using wp publication archive plugin in my multilingual site to show publications but i m having very wierd error category filtering works fine with dutch language but in english language its giving 404 page not found error for some category and fo some other category it is redirecting to some other page instead of post i m getting frustrated now please give any suggestion as soon as possible what to do and what is the actuall issue.

please any suggestion would be appriciated thanks

https://ww.wp.xz.cn/plugins/wp-publication-archive/