Drupal 8.x

Hi

Some of the users on my site can see /admin/reports/status/php.

I can't see how to disable or find a permission for this page.

Where can I control who can access /admin/reports/status/php?

Thanks

Back story, I have used Drupal since 6, had sites on 7 and currently have sites on 8. All were installed via cPanel and not composer or anything else.

Thanks for your time and thoughts.  I want to create a site where patrons have their own customizable page (node).  How feasible is it to create a handful of page layouts and have them pick one.  Once chosen they can then upload their own pics, write their own text and captions etc.  

How else would you go about designing this type of functionality in Drupal?  

Do any modules spring to mind perhaps?

I am adding this new element but #theme_wrapper is not working, only title is showing button is not showing.

I have some private files which are not deleted after cron. The files are marked as temporary and used in 0 places. One thing I noticed is that if I click at an image (in this case) the access is restricted. Something is wrong here an i would appreciate some help.

Any webform experts in here? I'm using Drupal webform module and trying to populate a webform with previous submission data and while there is an option "Autofill with previous submission data" this only works if you are logged into the site with an active session, not for anonymous users.  I looked at using webform secure token but that merely opens a webform submissions page to view or update submission.