Http 500 web service issue

Hi ,

I have tested the below URL format  in the IE browser

http://host name<abc.efg.com>:port<1111>/sap/bc/srt/rfc/sap/z_ws (Generated for Web Service Administration  z_ws) /<client>/z_ws(Generated for Web Service Administration z_ws).

After entring the above URL format in to IE browser  I am getting below error.

The website cannot display the page
HTTP 500

Most likely causes:
•The website is under maintenance.
•The website has a programming error.

What you can try:

Refresh the page.

Go back to the previous page.

Do I need to test/ check any other settings ?

How to resolve the issue

Thanks,

Vimal Alexander