Hello everyone, hope you're all well! Can someone help me with the following erro when using an adhoc in LCA?

Steps that i already have take:
- enabled the GQI DxM as mentioned in the documentation(GQI DxM | DataMiner Docs).
- verified if the SLManagedAutomation.dll was correctly located in the path C:\Skyline DataMiner\Files, and it was there, as mentioned in another similar question(Kata 62 - could not load assembly - DataMiner Dojo).

I will make the code available here in case the error may be in it, I would be grateful if you could check it.
namespace Web_Services___Get_Bookings_1
{
using System;
using System.Linq;
using System.Collections.Generic;
using Skyline.DataMiner.Automation;
using Skyline.DataMiner.Core.DataMinerSystem.Common;
using Skyline.DataMiner.Analytics.GenericInterface;
using Skyline.DataMiner.Net.Messages;
using Skyline.DataMiner.Net.ManagerStore;
using Skyline.DataMiner.Net.ResourceManager.Objects;
using Skyline.DataMiner.Net.Messages.SLDataGateway;

[GQIMetaData(Name = "Booking History")] public class GetBookingHistory : IGQIDataSource, IGQIOnInit
{
    private ReservationInstance[] _bookingsArray;
private Engine engine;
private GQIDMS gqiDms;
public OnInitOutputArgs OnInit(OnInitInputArgs args)
{
gqiDms = args.DMS;
var helper = new ResourceManagerHelper(gqiDms.SendMessage);
engine.GenerateInformation("Iniciando paginação de bookings...");

var list = new List<ReservationInstance>();

try
{
var pager = helper.PrepareReservationInstancePaging(
(SLDataGateway.API.Types.Querying.IQuery<ReservationInstance>)ResourceExposers.CreatedAt.LessThanOrEqual(DateTime.Today),
preferredPagingSize: 200);

while (pager.MoveToNextPage() && list.Count < 1000)
{
list.AddRange(pager.GetCurrentPage());
}
}
catch (CrudFailedException ex)
{
engine.GenerateInformation($"Erro ao buscar bookings: {ex.TraceData}");
}

_bookingsArray = list.Take(1000).ToArray();
engine.GenerateInformation($"Total bookings carregados: {_bookingsArray.Length}");

return new OnInitOutputArgs();
}

public GQIColumn[] GetColumns() => new GQIColumn[] {
new GQIStringColumn("Name"),
new GQIStringColumn("CreatedBy"),
new GQIDateTimeColumn("CreatedAt"),
new GQIStringColumn("LastModifiedBy"),
new GQIDateTimeColumn("LastModifiedAt"),
};

public GQIPage GetNextPage(GetNextPageInputArgs args)
{
var rows = _bookingsArray.Select(b => new GQIRow(new GQICell[] {
new GQICell { Value = b.Name },
new GQICell { Value = b.CreatedBy },
new GQICell { Value = b.CreatedAt },
new GQICell { Value = b.LastModifiedBy },
new GQICell { Value = b.LastModifiedAt },
})).ToArray();

return new GQIPage(rows);
}
}
}