Android Question DBrequest problem ?

I have a problem with DBrequestmanager, I open the application, run the first query, all ok. Visualize the data in a table, I click on a value and it should open up a new activity with the display of the record by performing a second query. I get stuck making a lot of mistakes but I do not understand where is the problem because the query is correct. After the first run of DBrequest must delete the object and re-initialize? I took the library as it is.

Error is in but is not error, is a default library)
Private Sub StartJob(j As HttpJob, MemoryStream As OutputStream, Tag As Object) As OutputStream
j.Initialize("DBRequest", mTarget)

Thanks