3-6 - An exception occurred in the proxy execution service

Possible Reason

  1. The current service parameters have been displayed as deprecated.
  2. This reminder may appear for generic declaration classes.

Troubleshooting and resolution steps

  1. Confirm whether there is a display parameter deprecated=true in the URL
  2. If this error occurs in the generic declaration class, it will try to create a proxy without the actual interface class.