Error message (You don't have permission to access /Tester/ on this server)

Image No : 1
This was problem for me. it was not Showing in Win SCP. anyone can solve problem permission ?

Image No : 2
This was my folder for display file Test_url.php





How to solve problem permission ?

This is not a WinSCP question.
It's about your web server.

Anyway, you are accessing directory in your browser.
For that to work you either:

• Need to have directory index page generation enabled in your web server configuration (what it usually not used these days).
  
• Or have directory index file uploaded (e.g. index.php).
  

For details, refer to your webserver/webhosting documentation.