2025-08-28 16:45:44.280 +05:30 19a2836d-94c1-4d85-a54f-0086d8fc066a ERR Login failed for user ''. 2025-08-28 16:45:44.304 +05:30 19a2836d-94c1-4d85-a54f-0086d8fc066a ERR Token Regeneration failed System.Data.SqlClient.SqlException (0x80131904): Login failed for user ''. at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, SqlCredential credential, Object providerInfo, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance, SqlConnectionString userConnectionOptions, SessionData reconnectSessionData, Boolean applyTransientFaultHandling, String accessToken) at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection, DbConnectionOptions userOptions) at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnectionPool pool, DbConnection owningObject, DbConnectionOptions options, DbConnectionPoolKey poolKey, DbConnectionOptions userOptions) at System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection) at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection) at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection) at System.Data.ProviderBase.DbConnectionPool.WaitForPendingOpen() --- End of stack trace from previous location --- at Sang.Service.Common.CommonService.CommonEntityService.ExecuteProcedureWithResult(String procedureName, SqlParameter[] parameters) at Sang.Service.Common.Authentication.TokenService.RegenerateTokens(String refershToken) at Sang.Security.Api.Controllers.TokenController.RegenerateTokens(String refreshToken) ClientConnectionId:260ad361-1076-4c52-99db-d47f5c566d63 Error Number:18456,State:1,Class:14