After a fresh installation of OJS 3.3.15, and login to the ojs, the .../admin/contexts/ page content is empty

I install an ojs 3.3.15 version, after the installation, login to the ojs, then the following url with no content appear in the browser addressbar.

I searched a lot but I didn’t find any solution.
I checked with other browsers and also with wamp, xamp, ampps… (in all), above page with no content.
I don’t know what to do, could you please help me.