VBA Vlookup Error Handling

I have done something wrong my my error handler - the vlookup, when it does not find a value, fails. Something to do with it being in a loop. Please help!

Do While i < (lastrow + 1)
Range("L" & i).Select
On Error GoTo ErrorHandler
Range("l" & i) = Application.WorksheetFunction.VLookup(Workbooks("ITEMT.CSV").Sheets("ITEMT").Range("a" & i), Workbooks("ITEMY.CSV").Sheets("ITEMY").Range("a" & i & ":" & "k" & lastrow), 11, False)

ErrorHandler:
If Err.Number = 1004 Then
result = 0
End If

bob = Range("k" & i).Value
bill = Range("l" & i).Value
If bill = bob Then
Range("m" & i).Value = "FALSE"
Else
Range("m" & i).Value = "TRUE"
End If
i = i + 1
Loop

Not sure sending it will work because it is dependent on several other workbooks. What I am trying to do is simple in theory. I have a Do While loop which runs a vlookup between two files to return certain items. When the lookup item is not in the other workbook, I need the program to accept it is not there, use zero for that iteration's value, and resume using the vlookup on the next item.

I used an error handler for this modified from what I posted which works to keep the code running to the end of the loop, but after the first error, it returns a zero every time. It is as if each iteration of the loop is seen as an error after the first error appears. I have something wrong here in the error handler I am sure - probably the placement or use of "resume next".

ErrorHandler:

Range("l" & i).Value = 0
Resume Next