SAP PI AAE Error in HTTP_AAE Receiver Communication Channel

statuscodeerror.pngHi Experts,

We are facing an issue with HTTP_AAE Receiver communication Channel.

The interface is like Proxy to HTTP Scenario and SAP PI version 7.5.

We are trying to send a test message from SAP PI "Send Test Message" Functionality. While processing the message we are getting the error "Exception caught by adapter framework: STATUS_CODE_NOT_OK- 500 Internal Server Error"

I did search on earlier posts but couldnt find any solution. Please Advise.