Traceback (most recent call last):
  File "/home/ubuntu/PriceScraper/src/main.py", line 17, in <module>
    s.scrape()
  File "/home/ubuntu/PriceScraper/src/ScraperAlbert.py", line 17, in scrape
    resp = requests.get('https://www.albert.cz/api/v1/?operationName=GetCategoryProductSearch&variables={"lang":"cs","category":"' + i["code"] + '","pageNumber":' + str(j) + ',"pageSize":20,"filterFlag":true,"plainChildCategories":true}&extensions={"persistedQuery":{"version":1,"sha256Hash":"8b68b8590c7d24f3ed8e338aa42e94e7d741766744bb9b9c87e15e18f332e4e5"}}').json()
  File "/usr/lib/python3/dist-packages/requests/models.py", line 900, in json
    return complexjson.loads(self.text, **kwargs)
  File "/usr/lib/python3/dist-packages/simplejson/__init__.py", line 525, in loads
    return _default_decoder.decode(s)
  File "/usr/lib/python3/dist-packages/simplejson/decoder.py", line 370, in decode
    obj, end = self.raw_decode(s)
  File "/usr/lib/python3/dist-packages/simplejson/decoder.py", line 400, in raw_decode
    return self.scan_once(s, idx=_w(s, idx).end())
simplejson.errors.JSONDecodeError: Expecting value: line 1 column 1 (char 0)