Unable to open File Sharing Internal Error: Method Not Allowed

Symptoms

• Unable to open File Sharing with the following error:

  CONFIG_TEXT: Internal Error: Method Not Allowed

• With enabled debug, there are the following records in %plesk_dir%admin\logs\php_error.log:

  CONFIG_TEXT: [2018-03-07 13:29:16] INFO [panel] WebDav isExist: private, admin/
  [2018-03-07 13:29:16] INFO [panel] Actual url: http://example.com:80/files/private/admin/
  [2018-03-07 13:29:16] ERR [panel] File sharing list retrieval failed: sharing type=private, code=405, error=Method Not Allowed

• Plesk repair utility fails with the following error:

  # plesk bin repair --web example.com -fileshing
  
  Repairing web server configuration
      Updating the file of sharing passwords and permissions of users
      according to actual information ................................. [OK]
      Repairing web server configuration for the domain example.com .... [FAILED]
      - This Web site cannot be started.  Another Web site may be using
        the same port.
        In Microsoft.Web.Administration module
        Exception type:
        Microsoft.Web.Administration.ServerManagerException
          at Microsoft.Web.Administration.Site.Start()
          at IISWebSite.startStop(IISWebSite* , Boolean start)
          at IISWebSite.start(IISWebSite* )

Cause

The site is stopped in IIS as another domain is running on its binding http://example.com:80.

Resolution

1. Connect to the server via RDP;

2. Open IIS:
   
   
   
3. Stop another domain, which is running on binding http://example.com:80:
   
   
   
4. Start the affected domain in IIS: