Suddenly we got error Invalid object name 'umbracoUser2app error but we haven't update anything on backend can you help me to find out what is it issue , sql username and password is same life before

{ "Message": "An error has occurred.", "ExceptionMessage": "Invalid object name 'umbracoUser2app'.", "ExceptionType": "System.Data.SqlClient.SqlException", "StackTrace": " at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action1 wrapCloseInAction)\r\n at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action1 wrapCloseInAction)\r\n at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)\r\n at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)\r\n at System.Data.SqlClient.SqlDataReader.TryConsumeMetaData()\r\n at System.Data.SqlClient.SqlDataReader.getMetaData()\r\n at System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString, Boolean isInternal, Boolean forDescribeParameterEncryption, Boolean shouldCacheForAlwaysEncrypted)\r\n at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, Boolean inRetry, SqlDataReader ds, Boolean describeParameterEncryptionRequest)\r\n at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource1 completion, Int32 timeout, Task& task, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry)\r\n at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method)\r\n at System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method)\r\n at System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior)\r\n at System.Data.Common.DbCommand.ExecuteReader(CommandBehavior behavior)\r\n at StackExchange.Profiling.Data.ProfiledDbCommand.ExecuteDbDataReader(CommandBehavior behavior)\r\n at System.Data.Common.DbCommand.System.Data.IDbCommand.ExecuteReader()\r\n at Umbraco.Core.Persistence.PetaPocoCommandExtensions.<>c__DisplayClass4.<ExecuteReaderWithRetry>b__3()\r\n at Umbraco.Core.Persistence.FaultHandling.RetryPolicy.ExecuteAction[TResult](Func1 func)\r\n at Umbraco.Core.Persistence.PetaPocoCommandExtensions.ExecuteReaderWithRetry(IDbCommand command, RetryPolicy cmdRetryPolicy, RetryPolicy conRetryPolicy)\r\n at Umbraco.Core.Persistence.PetaPocoCommandExtensions.ExecuteReaderWithRetry(IDbCommand command, RetryPolicy retryPolicy)\r\n at Umbraco.Core.Persistence.PetaPocoCommandExtensions.ExecuteReaderWithRetry(IDbCommand command)\r\n at Umbraco.Core.Persistence.Database._1.MoveNext()" }