Itgenclr008 error / dbms_output / QueryTool 20.2.27

Dear Invantive team,
it seems that the dbms_output.put_line() is not working as expected on QueryTool 20.2.27.
it pops up an itgenclr008 error like the one here: Itgenclr008: Value cannot be null bij aanmelden Excel op Exact Online administraties - #6 door ronaldmul

but in my case clearly it is dbms_output() that makes QueryTool unhappy.

that statement is this one:

declare
l_test integer := 0;
begin
for i in 1…10 loop
l_test := l_test + 1;
dbms_output.put_line(l_test);
end loop;
end;

itgenclr008: La valeur ne peut pas être null.Nom du paramètre : method.Bericht ID: 04882e4e-d2d3-4762-bb67-b4fe99a31810Opgetreden (UTC): 24/09/2021 10:56:54declare     l_test integer := 0;begin      for i in 1..10 loop      l_test := l_test + 1;      dbms_output.put_line(l_test);      end loop;end;System.ArgumentNullException   à System.Linq.Expressions.Expression.Call(Expression instance, MethodInfo method, IEnumerable`1 arguments)   à System.Linq.Expressions.Expression.Call(MethodInfo method, Expression[] arguments)   à Invantive.Sql.V1.DefaultPSqlPackages.SK.U(GlobalState , ExecutionOptions , Expression[] , PSqlScope )   à Invantive.Sql.V1.PSqlParser.ParseCallProcedure(GlobalState owner, ExecutionOptions executionOptions, PSqlCallProcedureStatementContext ctx, PSqlScope scope, AH queryPlanState)   à Invantive.Sql.V1.PSqlParser.ParsePSqlStatement(GlobalState owner, ExecutionOptions executionOptions, PSqlStatementContext statement, PSqlScope parentScope, AH queryPlanState)   à Invantive.Sql.V1.PSqlParser.ParsePSqlBlockOrStatement(GlobalState owner, ExecutionOptions executionOptions, PSqlBlockOrStatementContext input, PSqlScope parentScope, AH queryPlanState)   à Invantive.Sql.V1.PSqlParser.ParsePSqlBlockOrStatements(GlobalState owner, ExecutionOptions executionOptions, PSqlBlockOrStatementsContext input, PSqlScope parentScope, AH queryPlanState)   à Invantive.Sql.V1.PSqlParser.ParseLoop(GlobalState owner, ExecutionOptions executionOptions, PSqlLoopStatementContext loop, PSqlScope scope, AH queryPlanState)   à Invantive.Sql.V1.PSqlParser.ParsePSqlStatement(GlobalState owner, ExecutionOptions executionOptions, PSqlStatementContext statement, PSqlScope parentScope, AH queryPlanState)   à Invantive.Sql.V1.PSqlParser.ParsePSqlBlock(GlobalState owner, ExecutionOptions executionOptions, PSqlDeclareSectionContext declareSection, PSqlBodyNoBatchSeparatorContext body, PSqlScope parentScope, AH queryPlanState)   à Invantive.Sql.V1.PSqlStatementTree.OnExecute(GlobalState owner, ExecutionOptions executionOptions, ParameterList parameters, ExpressionParser expressionParser)   à Invantive.Sql.V1.QueryTree.Execute(GlobalState owner, ExecutionOptions executionOptions, ParameterList parameters, ExpressionParser expressionParser)   à Invantive.Sql.V1.QueryPlan.ForcePlan(GlobalState owner, ExecutionOptions executionOptions)   à Invantive.Sql.V1.QueryPlan.Fetch(GlobalState owner, ExecutionOptions executionOptions, ObjectDefinition objectDefinition, String sqlStatement)   à Invantive.Data.ConnectionManager.HB.T(QueryPlan )   à System.Linq.Enumerable.WhereSelectArrayIterator`2.MoveNext()   à System.Linq.Buffer`1..ctor(IEnumerable`1 source)   à System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source)   à Invantive.Data.ConnectionManager.ExecuteAndCombineQueryPlansV1(GlobalState owner, ExecutionOptions executionOptions, QueryPlan[] queryPlans, String sqlStatement, ParameterList parameters)   à Invantive.Data.ConnectionManager.ExecuteProviderPassthroughSqlActionTable(GlobalState owner, ExecutionOptions executionOptions, String actionSql, ParameterList parameters, String callSafeNameOverrule)--- Fin de la trace de la pile à partir de l'emplacement précédent au niveau duquel l'exception a été levée ---   à System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()   à Invantive.Data.ConnectionManager.ExecuteProviderPassthroughSqlActionTable(GlobalState owner, ExecutionOptions executionOptions, String actionSql, ParameterList parameters, String callSafeNameOverrule)   à Invantive.Data.ConnectionManager.PassthroughSqlActionTable(GlobalState owner, ExecutionOptions executionOptions, String actionSql, ParameterList parameters, String callSafeNameOverrule)--- Fin de la trace de la pile à partir de l'emplacement précédent au niveau duquel l'exception a été levée ---   à System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()   à Invantive.Data.ConnectionManager.PassthroughSqlActionTable(GlobalState owner, ExecutionOptions executionOptions, String actionSql, ParameterList parameters, String callSafeNameOverrule)   à Invantive.Data.ActionProceduresBase.PassthroughSqlActionTable(GlobalState owner, ExecutionOptions executionOptions, String actionSql, ParameterList parameters)   à Invantive.Producer.Windows.Forms.QueryToolResults.STQ(GlobalState , ExecutionOptions , IProgressNotifier , String , ParameterList , Boolean , Boolean , Boolean , Boolean ) dans C:\Users\gle3.WS212\Documents\ws-master\Invantive.Producer\src\Invantive.Producer.Windows.Forms\QueryTool\QueryToolTraceViewModel.cs:ligne 17   à Invantive.Producer.Windows.Forms.QueryToolResults.QTQ(GlobalState , ExecutionOptions , String , ParameterList ) dans C:\Users\gle3.WS212\Documents\ws-master\Invantive.Producer\src\Invantive.Producer.Windows.Forms\QueryTool\QueryToolDbmsOutputViewModel.cs:ligne 126