Import all entities from connector failed in Aurion IdB, Not Importing any changes from Aurion

@Northcott, one fine day, IdB started throwing these errors on all its connectors.

Error in One liner:

Change detection engine import all items failed.
Change detection engine import all items for connector SecurityUser failed with reason Aurion API error -1: . Duration: 00:00:01.0940697

And to Note: This error is happening in all the Connectors(Schedule, Person, Sec User and Position)

Work did from my end:

1. Tested Connectivity from Aurion Agent and it is connecting successfully

2. Tested the URL and I am able to see the XML output.

3. Tried restarting the IdB Service and still the error pops up

Some Investigation from my side, This error started with HTTP404 error which was thrown on Schedule Connector

Import all entities from connector failed.Import all entities from connector Schedule failed with reason The request failed with HTTP status 404: Not Found.. Duration: 00:00:00.0270257
Error details:
System.Net.WebException: The request failed with HTTP status 404: Not Found.
at System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage message, WebResponse response, Stream responseStream, Boolean asyncCall)
at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters)
at Unify.Communicators.AurionAPI.EV397_AURION_WSService.LOGON(String P_USER, String P_PASSWORD, String& P_TOKEN, String& P_MESSAGE, Decimal& P_STATUS)
at Unify.Communicators.AurionWSCommunicator.Logon(String userName, String password)
at Unify.Communicators.AurionAgent.Open()
at Unify.Connectors.AurionApiReadingConnector.<GetAllEntities>d__4.MoveNext()
at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()
at Unify.Framework.Collections.ActionOnExceptionEnumerator`1.MoveNext()
at Unify.Framework.Collections.EnumerableExtensions.<ActionOnLast>d__10`1.MoveNext()
at Unify.Framework.Collections.EnumerableExtensions.<ProduceAutoPages>d__7`1.MoveNext()
at Unify.Framework.Visitor.ThreadsafeVisitorEvaluator`1.Visit()
at Unify.Framework.Visitor.VisitEvaluateOnThreadPool[T](IEnumerable`1 visitCollection, Action`2 visitor, Int32 maxThreads)
at Unify.Product.IdentityBroker.RepositoryChangeDetectionWorkerBase.PerformChangeDetection(IEnumerable`1 connectorEntities)
at Unify.Product.IdentityBroker.ChangeDetectionImportAllJob.ImportAllChangeProcess()
at Unify.Product.IdentityBroker.ChangeDetectionImportAllJob.RunBase()
at Unify.Framework.DefinedScopeJobAuditTrailJobDecorator.Run()
at Unify.Product.IdentityBroker.ConnectorJobExecutor.<>c__DisplayClass33_0.<Run>b__0()
at Unify.Framework.AsynchronousJobExecutor.PerformJobCallback(Object state)

And ever since that happened, the below error started to happen.

Change detection engine import all items failed.Change detection engine import all items for connector SecurityUser failed with reason Aurion API error -1: . Duration: 00:00:01.0940697
Error details:
System.Exception: Aurion API error -1: 
at Unify.Communicators.AurionWSCommunicator.RaiseExceptionOnErrorCondition(Decimal pStatus, String pMessage)
at Unify.Communicators.AurionWSCommunicator.SetFunction(String function)
at Unify.Communicators.AurionApiFunctionBase.RunFunction()
at Unify.Communicators.AurionAgent.QueryToXml(String queryId, String expectedObjectName)
at Unify.Connectors.AurionApiReadingConnector.<GetAllEntities>d__4.MoveNext()
at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()
at Unify.Framework.Collections.ActionOnExceptionEnumerator`1.MoveNext()
at Unify.Framework.Collections.EnumerableExtensions.<ActionOnLast>d__10`1.MoveNext()
at Unify.Framework.Collections.EnumerableExtensions.<ProduceAutoPages>d__7`1.MoveNext()
at Unify.Framework.Visitor.ThreadsafeVisitorEvaluator`1.Visit()
at Unify.Framework.Visitor.VisitEvaluateOnThreadPool[T](IEnumerable`1 visitCollection, Action`2 visitor, Int32 maxThreads)
at Unify.Product.IdentityBroker.RepositoryChangeDetectionWorkerBase.PerformChangeDetection(IEnumerable`1 connectorEntities)
at Unify.Product.IdentityBroker.ChangeDetectionImportAllJob.ImportAllChangeProcess()
at Unify.Product.IdentityBroker.ChangeDetectionImportAllJob.RunBase()
at Unify.Framework.DefinedScopeJobAuditTrailJobDecorator.Run()
at Unify.Product.IdentityBroker.ConnectorJobExecutor.<>c__DisplayClass33_0.<Run>b__0()
at Unify.Framework.AsynchronousJobExecutor.PerformJobCallback(Object state)

P.S. Please let me know if you need the configuration and logs. I cannot find an attachment where I can attach the logs