Python 3.x AttributeError:响应内容不是'；t文本。有什么问题？

我使用的是python3.8.5、scrapy2.4.0，我还使用了scrapy代理池和scrapy用户代理，我得到了“AttributeError:响应内容不是文本”。我正在python3 venv上运行此代码。你愿意帮我解释和解决这个问题吗

这是我的密码：

import scrapy
import json


class BasisMembersSpider(scrapy.Spider):
    name = 'basis'
    allowed_domains = ['www.basis.org.bd']

    def start_requests(self):
        start_url = 'https://basis.org.bd/get-member-list?page=1&team='
        yield scrapy.Request(url=start_url, callback=self.get_membership_no)

    def get_membership_no(self, response):

        data_array = json.loads(response.body)['data']
        next_page = json.loads(response.body)['links']['next']
        
        for data in data_array:
            next_url = 'https://basis.org.bd/get-company-profile/{0}'.format(data['membership_no'])
            yield scrapy.Request(url=next_url, callback=self.parse)
            
        if next_page:
            yield scrapy.Request(url=next_page, callback=self.get_membership_no)

    def parse(self, response):
        print("Printing informations....................................................")

这是我的settings.py文件：

BOT_NAME = 'web_scraping'

SPIDER_MODULES = ['web_scraping.spiders']
NEWSPIDER_MODULE = 'web_scraping.spiders'

AUTOTHROTTLE_ENABLED = True

# Crawl responsibly by identifying yourself (and your website) on the user-agent
#USER_AGENT = 'web_scraping (+http://www.yourdomain.com)'

# Obey robots.txt rules
ROBOTSTXT_OBEY = False
PROXY_POOL_ENABLED = True
DOWNLOADER_MIDDLEWARES = {
    'scrapy.downloadermiddlewares.useragent.UserAgentMiddleware': None,
    'scrapy_user_agents.middlewares.RandomUserAgentMiddleware': 800,
    'scrapy_proxy_pool.middlewares.ProxyPoolMiddleware': 610,
    'scrapy_proxy_pool.middlewares.BanDetectionMiddleware': 620,
}

和是来自控制台输出的错误消息： 谢谢你