{'error_code': '101', 'error_message': 'API key not found.'}

Question

Hi, 
I have this as my code but still give the same error :

url = "https://ip2whois-whois-information-lookup.p.rapidapi.com/"
querystring = {"domain":_domain,"key":"free"}

headers = {
  'x-rapidapi-host': "ip2whois-whois-information-lookup.p.rapidapi.com",
  'x-rapidapi-key': WHOIS_rapidapi_key
  }
response = requests.request("GET", url, headers=headers, params=querystring).json()

IP2WHOIS - WHOIS Information Lookup

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{'error_code': '101', 'error_message': 'API key not found.'}