ProxyError at /

ProxyError at / HTTPSConnectionPool(host='', port=443): Max retries exceeded with url: /reverse-geocoder/LonLatToAddress?lat=35.659107&lon=139.740936 (Caused by ProxyError('Cannot connect to proxy.', OSError('Tunnel connection failed: 403 Forbidden')))

I don't know why I am getting this error Even though the api worked perfectly on the local server

I see that you posted a whitelist request in another thread so I'll respond there.