Confluence failing to sync user directory from Crowd

[Nihaz Majeed]

We are getting Error from Confluence as its not syncing any changes from Crowd when ever we modify the users in Crowd

Below are the logs as ip 172.31.171.25 is the Confluence ELB ip

Caused by: com.atlassian.crowd.exception.ApplicationPermissionException: HTTP Status 403 – ForbiddenType Status ReportMessage Client with address "172.31.171.25" is forbidden from making requests to the application, confluence.Description The server understood the request but refuses to authorize it.Apache Tomcat/8.5.50
at com.atlassian.crowd.integration.rest.service.RestExecutor$MethodExecutor.throwError(RestExecutor.java:522)
at com.atlassian.crowd.integration.rest.service.RestExecutor$MethodExecutor.andReceive(RestExecutor.java:364)
at com.atlassian.crowd.integration.rest.service.RestCrowdClient.searchUsers(RestCrowdClient.java:513)
at com.atlassian.crowd.directory.RemoteCrowdDirectory.searchUsers(RemoteCrowdDirectory.java:327)
... 25 more
2020-10-22 16:52:10,253 WARN [Caesium-1-2] [impl.schedule.caesium.JobRunnerWrapper] runJob Scheduled job LaasPerformanceLoggingJob#LaasPerformanceLoggingJob completed unsuccessfully with response JobRunnerResponse[runOutcome=ABORTED,message='LaaS performance logging is turned off']