python gspread-要求在范围内写作，但尝试写入其他行

Question

遇到此代码的问题，该代码将数组转换为DF，然后更新了一个Google表，其中有更多的数据在一周前起作用：

df2 = pd.DataFrame(data, columns=['Col1', 'Col2', 'Col3', 'Col4', 
'Col5', 'Col6', 'Col7', 'Col8'])

gc = gs.service_account(filename=CloudPathCredentials)
ws = gc.open("Spreadsheetname").worksheet("Sheet1")
firsthold = holder[0]
lasthold = holder[-1]
cellmatch1 = ws.find(firsthold)
cellmatch2 = ws.find(lasthold)
begrow = str(cellmatch1.row)
endrow = str(cellmatch2.row)
begrange = "A" + begrow
endrange = "H" + endrow
fullrange = begrange + ":" + endrange
values = df2.values.tolist()
ws.update(fullrange, values)

现在，由于某种原因，数据结束后，它正在尝试写入1行，并引发错误：

gspread.exceptions.APIError: {'code': 400, 'message': 'Requested writing within range [Sheet1!1757:1890], but tried writing to row [1891]', 'status': 'INVALID_ARGUMENT'}