vcenter endpoint cannot be found in Vra 7.5

Hello Expert,

I am unable to add vsphere endpoint inside Vra 7.5. Please find below vSphereAgent error log . Please help me resolve this issue

vcac: [component="iaas:VRMAgent.exe" priority="Debug" thread="5968"] [sub-thread-Id="5"  context=""  token=""] Ping Sent Successfully : [<?xml version="1.0" encoding="utf-16"?><pingReport agentName="Vcenter agentVersion="7.5.0.0" agentLocation="Vraagn01" WorkitemsProcessed="0"><Endpoint /><ErrorCode>ENDPOINT_NOT_FOUND</ErrorCode><ManagementEndpoint Name="Vcsa.vralab.com" /><Nodes /><AgentTypes><AgentType name="Hypervisor" /><AgentType name="vSphereHypervisor" /></AgentTypes></pingReport>]