Proxy Error 503

Good afternoon,

Received this error although I was within the 600/minute rate limit. What could have caused this?

ProxyError: HTTPSConnectionPool(host=‘api.companieshouse.gov.uk’, port=443): Max retries exceeded with url: /company/07297423 (Caused by ProxyError(‘Cannot connect to proxy.’, error(‘Tunnel connection failed: 503 Service Unavailable’,)))

Thanks

Alex

This looks like your proxy telling you that it got an error (possibly 503) from our site.
We would not normally expect any of our customers to see errors like this unless we are having system issues or there is a problem with the data you are sending to us or there is a problem with your proxy and its internet connection.
If you receive errors like this again,please send us a copy of the errors along with accurate times (and dates) so we can investigate our system logs.
Thank you.