@jaycbrf
Sorry for the confusion. A couple of people have looked at it and nobody understands exactly why my pages are missing although the website is still online. Looks like my catch files are making sure the website is still running.
Unfortunately nor me nor my host of the website has a back up when the pages were still there (mid August). Only solution now looks like I have to build the page from scratch again.
Thanks for trying to help.
@jaycbrf, thanks for your reply.
It’s a ww.wp.xz.cn account.
It’s hosted by a company in the Netherlands: Antagonist. They work with Installatron / Direct Admin.