Landing [salon/] shows not correctly

New link https://nagelsalonsyl.nl/boeken/

Hi,

have a look at this guide: https://salonbookingsystem.helpscoutdocs.com/article/94-how-to-debug-issues

i tried the video, but still same error.

Did an full re-install on wordpress to and still same..

try activating a wordpress standard theme, it seems a theme conflict issue to me..

Im using the standard theme twenty-twentyfour

Found out that the plugin has problems with templates.
I used the code without template, just on a page and it works fine.