我有一个.py刮刀，当它运行时，工作正常，但没有得到100%的数据。我得到了很多这样的错误：

2022-05-05 20:53:39 [scrapy.core.scraper] ERROR: Spider error processing <GET https://www.justforsport.com.ar/buzo-hombre-361-degrees-y2201my002a-urban-1-gris/p> (referer: https://www.justforsport.com.ar/hombre?page=3)
Traceback (most recent call last):
  File "C:\Users\User\Desktop\Personal\DABRA\Scraper_jfs\venv\lib\site-packages\scrapy\utils\defer.py", line 120, in iter_errback
    yield next(it)
  File "C:\Users\User\Desktop\Personal\DABRA\Scraper_jfs\venv\lib\site-packages\scrapy\utils\python.py", line 353, in __next__
    return next(self.data)
  File "C:\Users\User\Desktop\Personal\DABRA\Scraper_jfs\venv\lib\site-packages\scrapy\utils\python.py", line 353, in __next__
    return next(self.data)
  File "C:\Users\User\Desktop\Personal\DABRA\Scraper_jfs\venv\lib\site-packages\scrapy\core\spidermw.py", line 56, in _evaluate_iterable
    for r in iterable:
  File "C:\Users\User\Desktop\Personal\DABRA\Scraper_jfs\venv\lib\site-packages\scrapy\spidermiddlewares\offsite.py", line 29, in process_spider_output
    for x in result:
  File "C:\Users\User\Desktop\Personal\DABRA\Scraper_jfs\venv\lib\site-packages\scrapy\core\spidermw.py", line 56, in _evaluate_iterable
    for r in iterable:
  File "C:\Users\User\Desktop\Personal\DABRA\Scraper_jfs\venv\lib\site-packages\scrapy\spidermiddlewares\referer.py", line 342, in <genexpr>
    return (_set_referer(r) for r in result or ())
  File "C:\Users\User\Desktop\Personal\DABRA\Scraper_jfs\venv\lib\site-packages\scrapy\core\spidermw.py", line 56, in _evaluate_iterable
    for r in iterable:
  File "C:\Users\User\Desktop\Personal\DABRA\Scraper_jfs\venv\lib\site-packages\scrapy\spidermiddlewares\urllength.py", line 40, in <genexpr>
    return (r for r in result or () if _filter(r))
  File "C:\Users\User\Desktop\Personal\DABRA\Scraper_jfs\venv\lib\site-packages\scrapy\core\spidermw.py", line 56, in _evaluate_iterable
    for r in iterable:
  File "C:\Users\User\Desktop\Personal\DABRA\Scraper_jfs\venv\lib\site-packages\scrapy\spidermiddlewares\depth.py", line 58, in <genexpr>
    return (r for r in result or () if _filter(r))
  File "C:\Users\User\Desktop\Personal\DABRA\Scraper_jfs\venv\lib\site-packages\scrapy\core\spidermw.py", line 56, in _evaluate_iterable
    for r in iterable:
  File "c:\Users\User\Desktop\Personal\DABRA\Scraper_jfs\just_for_sport\just_for_sport\spiders\jfs_hombre.py", line 41, in parse_article_detail
    precio0=response.css('span.vtex-product-price-1-x-currencyContainer.vtex-product-price-1-x-currencyContainer--product')[0]
  File "C:\Users\User\Desktop\Personal\DABRA\Scraper_jfs\venv\lib\site-packages\parsel\selector.py", line 70, in __getitem__
    o = super(SelectorList, self).__getitem__(pos)
IndexError: list index out of range

这是我剧本：

import scrapy
from scrapy_splash import SplashRequest
from concurrent.futures import process
from scrapy.crawler import CrawlerProcess
from datetime import datetime
import os

if os.path.exists('jfs_hombre.csv'):
    os.remove('jfs_hombre.csv')
    print("The file has been deleted successfully")
else:
    print("The file does not exist!")

class JfsSpider_hombre(scrapy.Spider):
    name = 'jfs_hombre'
    start_urls = ["https://www.justforsport.com.ar/hombre?page=1"]

    def parse(self,response):
        total_products=int(int(response.css('div.vtex-search-result-3-x-totalProducts--layout.pv5.ph9.bn-ns.bt-s.b--muted-5.tc-s.tl.t-action--small span::text').get())/27) + 1
        for count in range(1, total_products):
            yield SplashRequest(url=f'https://www.justforsport.com.ar/hombre?page={count}',
                          callback=self.parse_links)

    def parse_links(self,response):
        links=response.css('a.vtex-product-summary-2-x-clearLink.vtex-product-summary-2-x-clearLink--shelf-product.h-100.flex.flex-column::attr(href)').getall()  
        for link in links:
            yield SplashRequest(response.urljoin('https://www.justforsport.com.ar' + link), self.parse_article_detail)

    def parse_article_detail(self, response):
        precio0=response.css('span.vtex-product-price-1-x-currencyContainer.vtex-product-price-1-x-currencyContainer--product')[0]
        yield {
            'Casa':'Just_For_Sports',
            'Sku' :response.css('span.vtex-product-identifier-0-x-product-identifier__value::text').get(),
            'Name':response.css('span.vtex-store-components-3-x-productBrand::text').get() ,
            'precio':''.join(precio0.css('span.vtex-product-price-1-x-currencyInteger.vtex-product-price-1-x-currencyInteger--product::text').getall()),
            'Link':response.url,
            'Date':datetime.today().strftime('%Y-%m-%d')
                 }

process= CrawlerProcess(
    settings = { 
        'FEED_URI':'jfs_hombre.csv' ,
        'FEED_FORMAT': 'csv',
        'FEED_EXPORT_ENCODING':'utf-8',
        'CONCURRENT_REQUESTS': 16,
        'AUTOTHROTTLE_ENABLED': True,
        'AUTOTHROTTLE_START_DELAY': 1,
        'AUTOTHROTTLE_MAX_DELAY' : 2,
        'USER_AGENT' : 'Googlebot/2.1 (+http://www.google.com/bot.html)'
        } )        

process.crawl(JfsSpider_hombre)
process.start()

我不明白错误是什么...为什么有时我得到100%的信息，有时我得到这些消息？这是一些有关脚本，用户代理，关于进程运行的时刻？
提前感谢！