Ошибка Runtime error 6 Overflow

Помогите пожалуйста разобраться. Все время возникает ошибка:

Runtime error '6' Overflow в VBA.

Ошибка возникает в этой строке

"If WBook.Cells(q, 7) = ArrayPhoneAll(i) Then"

В столбце находятся телефонные номера или email, если поменять номер столбца, никакой ошибки не возникает.

Sub RegisterComplaintsPhone()

Dim n As Integer
Dim q As Long

n = 1


    
Set WBook = Workbooks("ДС_Реестр жалоб ГЛ и ЧАТ 09.07.2021222.xlsx").Worksheets("ДС_ГЛ, ЧАТ")

    
ReDim ArrayPhone(n) As Variant       
ReDim ArraySuccess(n) As Variant     
ReDim ArrayResult(n) As Variant      
ReDim ArrayPhone(n) As Variant       
ReDim ArrayFIO(n) As Variant         
ReDim ArrayDS(n) As Variant          
ReDim ArrayEmployee(n) As Variant    
ReDim ArrayEmployeeAll(n) As Variant 
ReDim ArrayDSAll(n) As Variant       
ReDim ArrayPhoneAll(n) As Variant    
ReDim ArrayResultAll(n) As Variant

 
n = 1
For w = 2 To 300
    If Worksheets("ДС").Cells(w, 2) <> "" Then
        ArrayPhoneAll(n) = Worksheets("ДС").Cells(w, 14).Value
        ArrayEmployeeAll(n) = Worksheets("ДС").Cells(w, 3).Value
        ArrayResultAll(n) = Worksheets("ДС").Cells(w, 2).Value
        Worksheets("ДС").Cells(w, 19) = ArrayPhoneAll(n)
        Worksheets("ДС").Cells(w, 20) = ArrayEmployeeAll(n)
        Worksheets("ДС").Cells(w, 21) = ArrayResultAll(n)
        n = n + 1
        'ReDim Preserve ArrayDSAll(n)
        ReDim Preserve ArrayPhoneAll(n)
        ReDim Preserve ArrayEmployeeAll(n)
        ReDim Preserve ArrayResultAll(n)
    End If
Next

n = 1 

MsgBox ArrayPhoneAll(1)
For i = 1 To UBound(ArrayPhoneAll) - 1
    For q = 2 To 20000
        If WBook.Cells(q, 7) = ArrayPhoneAll(i) Then
            WBook.Cells(q, 31) = ArrayPhoneAll(i)
        End If
    Next
Next
End Sub