The sequence of execution in your script jumped into the middle of a For�Next loop. This causes an error because For�Next loop counters must be initialized. The following demonstrates the correct structure of a For�Next loop.
For counter = start To end [Step step] [statements] [Exit For] [statements] Next
To correct this error
Looping Through Code | For...Next Statement | Do...Loop Statement | Exit Statement | For Each...Next Statement | While...Wend Statement