HTTPSConnectionPool Max retries exceeded api.ratesapi.io

Question

I am getting an HTTP connection failure while trying to use some currency rates.

I am confuse if this is a connection issue or simply the call is invalid.

socket.gaierror: [Errno 8] nodename nor servname provided, or not known

raise ConnectionError(e, request=request) requests.exceptions.ConnectionError: HTTPSConnectionPool(host='api.ratesapi.io', port=443): Max retries exceeded with url: /api/latest?base=EUR&symbols=USD&rtype=fpy (Caused by NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x7fb3d1605820>: Failed to establish a new connection: [Errno 8] nodename nor servname provided, or not known'))

from forex_python.converter import CurrencyRates
from datetime import date

print("-----")
today = date.today()
CcyTarget: str = 'USD'
c = CurrencyRates()

# Class Cash
class Cash:
    def __init__(self, Account, CcyOutput):
        self.CcyOutput = CcyOutput
        self.Account = Account

    def ccy_alignment_method(self):
        return c.convert("EUR", CcyTarget, self.Account)


# Class Def
BANK = Cash(9999, CcyTarget)


Total_Cash_inCCYTarget = BANK.ccy_alignment_method()

Would you able to identify the blocking point ?