Could not BootStrap

Dear Team,

We are using the CouchBaseNetClient2.4.8 version and we are facing the below problem when we are trying to connect using Load balancer.

Working fine using direct node.

Kindly provide the solution.

Could not bootstrap - check inner exceptions for details. —> System.AggregateException: One or more errors occurred. —> System.NullReferenceException: Object reference not set to an instance of an object.
at Couchbase.IO.Services.PooledIOService.CheckEnabledServerFeatures(IConnection connection)
at Couchbase.IO.Services.PooledIOService…ctor(IConnectionPool connectionPool)
at Couchbase.IO.IOServiceFactory.<>c__DisplayClass0_0.b__0(IConnectionPool pool)
at Couchbase.Configuration.Server.Providers.CarrierPublication.CarrierPublicationProvider.GetConfig(String bucketName, String username, String password)
— End of inner exception stack trace —
at Couchbase.Configuration.Server.Providers.CarrierPublication.CarrierPublicationProvider.GetConfig(String bucketName, String username, String password)
at Couchbase.Core.ClusterController.CreateBucket(String bucketName, String username, String password, IAuthenticator authenticator)
— End of inner exception stack trace —
at Couchbase.Core.ClusterController.CreateBucket(String bucketName, String username, String password, IAuthenticator authenticator)
at Couchbase.Core.ClusterController.CreateBucket(String bucketName, IAuthenticator authenticator)
at Couchbase.Cluster.OpenBucket(String bucketname)
at WorldVentures.Fortius.Framework.Caching.Couchbase.CouchbaseClient.Initialize(ITypeSerializer serializer)
at WorldVentures.Fortius.Framework.Caching.Couchbase.CouchbaseClient…ctor(String configSection, ITypeSerializer serializer)
at WorldVentures.Fortius.Framework.Caching.Couchbase.CouchbaseClient…ctor(String configSection)