Page errors

I made a wordpress site and have a problem,
first i thought it was buddypress because i couldn’t access the pages in the admin menu but now i see it isn’t the fault of this plugin.

When i try to create a new page, it shows up on the edit page and in the navigation menu of my site, but when i click on it there i go to a standard error page of my host: http://err.000webhost.com/
with following message:
We did not find results for: touchbreaker.hostzi.com. Try the suggestions below or type a new query above.

could somebody help me please?