How to page thru sqlkata PaginationResult?

I am using .NET Core and SQLKata to access SQL Server database. I have a method to get all records from the database using SQLKata.Execution.PaginationResult.

This is in Repository:

public class MyTableRepository : IMyTableRepository
{
   private QueryFactory _db;
   public MyTableRepository(IConfiguration configuration)
   {
     var conn = new 
     SqlConnection(configuration.GetConnectionString("MyTable"));
     _db = new QueryFactory(conn, new SqlKata.Compilers.SqlServerCompiler());
   }

  public PaginationResult<MyModel> GetAll(int page = 0, int perPage = 25)
  {
    dbResult = _db.Query("MyTable").Paginate<MyModel>(page, perPage);
    return dbResult; 
  }

The above is called from my Controller like so:

    private readonly IMyTableRepository _MyTableRepository;
    public MyTableController(IMyTableRepository MyTableRepository)
    {
        _MyTableRepository = MyTableRepository;
    }
    [HttpGet]
    [Route("GetMyTable")]
    public List<MyModel> GetMyTable()
    {
        PaginationResult<MyModel> dbResult = MyTableRepository.GetAll(1, 
        25);
        List<MyModel> AccumResult = dbResult.List.ToList();
        while(dbResult.HasNext)    
        {       
            dbResult = dbResult.Next();
            AccumResult.AddRange(dbResult.List.ToList());
        }
        return AccumResult;  
    }

How do I get the Next set of result from dbResult ?

I tried below, after I execute GetMyTable, I execute GetNextMyTable, but in PaginationResult GetNext(), dbResult is always null.

In controller:

    [HttpGet]
    [Route("GetNextMyTable")]
    public List<MyTable> GetNextMyTable()
    {
        var result = _MyTableRepository.GetNext().List;
        return result.ToList();
    }

In Repository:

public PaginationResult<MyTable> GetNext()
{
  while(dbResult.HasNext)    //--->> dbResult is null
  {       
   dbResult = dbResult.Next();
   return dbResult; 
  }      
  return null;
}    

If I do the Next method inside the Controller, I am also getting an error

private readonly IMyTableRepository _MyTableRepository;
private PaginationResult<SP_SMA_Reporting_Accts> dbResult;

[HttpGet]
[Route("GetMyTable")]
public List<MyModel> GetMyTable()
{
    var dbResult = _MyTableRepository.GetAll(1, 25).List;
    return dbResult.ToList();
}

[HttpGet]
[Route("GetNextMyTable")]
public List<MyTable> GetNextMyTable()
{
    var result = dbResult.Next().List;//->Error since dbResult is null
    return result.ToList();
}