I am trying to Use Vision APIs (AmalyzeImage) using Integration Gen 2 and Getting an error

Summary: I created an app-driven integration to call AnalyzeImage Vision API but getting an error and not able to figure out what the error is

Content (required):

{

  "type" : "http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.5.1",

 "title" : "Internal Server Error",

 "detail" : "Internal server error. Please contact oracle support for details.",

 "errorCode" : "500",

 "errorDetails" : [ {

  "type" : "UnMappedFault:execute",

  "instance" : "NA",

    "title" : "Fault Details : \n<nsmpr0:APIInvocationError xmlns:nsmpr0=\"http://xmlns.oracle.com/cloud/generic/rest/fault/REST/AnalyzeImage\"><nsmpr0:type/><nsmpr0:title/><nsmpr0:detail/><nsmpr0:errorCode/><nsmpr0:errorDetails><nsmpr0:type>http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.4.5</nsmpr0:type><nsmpr0:title>Not