No DICOMweb server is configured!

I followed the instruction here : https://book.orthanc-server.com/plugins/dicomweb.html?highlight=dicomweb#client-related-options
but after 7 hours, I still having this error No DICOMweb server is configured!.
please help me I am new to orthanc.

Please carefully read the following page of the Orthanc Book:
https://book.orthanc-server.com/users/support.html

You should at least describe your environment, your configuration files, and provide the logs in “–verbose” mode if you expect help from the community.

Closing this thread, as it is a duplicate of:
https://groups.google.com/d/msg/orthanc-users/5MYf4WRrk4E/2QAngScwBgAJ

Please don’t open multiple threads, but post answers instead!