efcore: Invalid Operation, Error connection is closed. Azure Function with Azure SQL serverless

Client: Azure Function V3 on App Service Plan: (Linux) Premium v2 Codebase: .Net core 3.1 / Entity Framework Core 3.1.0 Database: Azure SQL (Serverless, Min 2 Cores/ Max 6 cores)

Intermittently but with high frequency getting error : Invalid Operation. Connection is closed. Below is complete error details

System.InvalidOperationException: Invalid operation. The connection is closed.
   at Microsoft.Data.SqlClient.TdsParserStateObject.WritePacket(Byte flushMode, Boolean canAccumulate)
   at Microsoft.Data.SqlClient.TdsParser.WriteInt(Int32 v, TdsParserStateObject stateObj)
   at Microsoft.Data.SqlClient.Server.ValueUtilsSmi.SetCompatibleValue(SmiEventSink_Default sink, ITypedSettersV3 setters, Int32 ordinal, SmiMetaData metaData, Object value, ExtendedClrTypeCode typeCode, Int32 offset)
   at Microsoft.Data.SqlClient.Server.ValueUtilsSmi.SetDataTable_Unchecked(SmiEventSink_Default sink, SmiTypedGetterSetter setters, Int32 ordinal, SmiMetaData metaData, DataTable value)
   at Microsoft.Data.SqlClient.TdsParser.WriteSmiParameter(SqlParameter param, Int32 paramIndex, Boolean sendDefault, TdsParserStateObject stateObj)
   at Microsoft.Data.SqlClient.TdsParser.TdsExecuteRPC(SqlCommand cmd, _SqlRPC[] rpcArray, Int32 timeout, Boolean inSchema, SqlNotificationRequest notificationRequest, TdsParserStateObject stateObj, Boolean isCommandProc, Boolean sync, TaskCompletionSource`1 completion, Int32 startRpc, Int32 startParam)
   at Microsoft.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean isAsync, Int32 timeout, Task& task, Boolean asyncWrite, Boolean inRetry, SqlDataReader ds, Boolean describeParameterEncryptionRequest)
   at Microsoft.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry, String method)
   at Microsoft.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(TaskCompletionSource`1 completion, Boolean sendToPipe, Int32 timeout, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry, String methodName)
   at Microsoft.Data.SqlClient.SqlCommand.BeginExecuteNonQueryInternal(CommandBehavior behavior, AsyncCallback callback, Object stateObject, Int32 timeout, Boolean inRetry, Boolean asyncWrite)
   at Microsoft.Data.SqlClient.SqlCommand.BeginExecuteNonQueryAsync(AsyncCallback callback, Object stateObject)
   at System.Threading.Tasks.TaskFactory`1.FromAsyncImpl(Func`3 beginMethod, Func`2 endFunction, Action`1 endAction, Object state, TaskCreationOptions creationOptions)
   at Microsoft.Data.SqlClient.SqlCommand.ExecuteNonQueryAsync(CancellationToken cancellationToken)

EF Core version: 3.1.0 Database provider: (Microsoft.EntityFrameworkCore.SqlServer) UseSqlServer Target framework: (.NET Core 3.1) Operating system: Azure App Service Plan Premium v2 on Linux IDE: (e.g. Visual Studio 2019 16.3)