Calling store producer in oracle database 12c I get invalid SQL statement

Hi there
i have store store producer in oracle database 12c with params in and out
and when i run the code i get error the SQL is not invalid
the code below

using (OracleConnection connection = new OracleConnection(_connection.ConnectionString))
{  
    // Create a OracleDynamicParameters object.
    var parameters = new OracleDynamicParameters();
    // Add(string name, OracleDbType oracleDbType, ParameterDirection direction, object value = null, int? size = null)  
  
    parameters.Add("in_RQ_SALES_REQUEST", OracleDbType.Int32 ,ParameterDirection.Input , 14478);
    parameters.Add("in_RQ_AMOUNT", OracleDbType.Int32 ,ParameterDirection.Input , 2500);
    parameters.Add("in_RQ_CURRENCY", OracleDbType.Char ,ParameterDirection.Input ,"YER", 3);
    parameters.Add("in_RQ_TP_CHANNEL", OracleDbType.Char ,ParameterDirection.Input ,"APP", 3);
    parameters.Add("in_RQ_ACC_TYPE", OracleDbType.Varchar2 ,ParameterDirection.Input ,"SUB"); 
    parameters.Add("in_RQ_MAIN_SRVC_ID", OracleDbType.Int32 ,ParameterDirection.Input ,1);
    parameters.Add("in_RQ_SUB_SRVC_ID", OracleDbType.Int32 ,ParameterDirection.Input ,1); 

    parameters.Add("in_RQ_INTERNAL_EXTRA1", OracleDbType.Varchar2 ,ParameterDirection.Input ,"123456"); 
    parameters.Add("in_RQ_INTERNAL_EXTRA2", OracleDbType.Varchar2 ,ParameterDirection.Input ,"775550902"); 

    
    // Add the out parameters to the OracleDynamicParameters object.
    parameters.Add("P_OUT_RESULT", OracleDbType.Int32, ParameterDirection.Output);
    parameters.Add("P_OUT_RESULT_DESC", OracleDbType.Varchar2, ParameterDirection.Output);

    // Call the stored procedure.
    var result = connection.Execute("SP_INIT_SALES_REQUEST", parameters);

    // Retrieve the out parameter values from the OracleDynamicParameters object.
    // int outResult = parameters["out_Result"].Value<int>();
    // string outResultDesc = parameters["out_Result_Desc"].Value<string>();

    // Close the connection.
    connection.Close();

    return Ok("result =>" + result.ToString());
}

And i can not get the out params

// Retrieve the out parameter values from the OracleDynamicParameters object.
// int outResult = parameters["out_Result"].Value<int>();
// string outResultDesc = parameters["out_Result_Desc"].Value<string>();

Start with the OracleConnection.Execute call and OracleDynamicParameters setup shown in the issue, then reproduce the stored-procedure invocation. Check how Dapper handles the command and output parameters for this call. Done means the procedure executes without the invalid-SQL error and both output values can be retrieved.