Polylang structural issue with Japanese language

Hi!
I am using polylang for my website with word press, and I have one problem.

I am using English, Spanish and Japanese on the site, and only in Japanses page, excerpt of blog article does not work well.
It shows all contents without paragraphs only on Japanese page. And unfortunately it does not look good.

I updated and deactivated all plugins one by one and it resulted polylang is the one which causes the issue.
I also talked the company of the theme “Ache” I use and they also tried it with other themes, but they had same issue only with Japanese language and they asked me to contact to Polylang.

It is greatly appreciated if this issue is resolved with Japanese language.
If you need any other information, please kindly let me know.
Thank you so much!

The page I need help with: [log in to see the link]