Bandwidth Limit Exceeded when running in batch

[kudlav]

I'm quering this page for public transport relations in our contries and after while the page return (only sometimes) following internal error:

Internal error
Message:

org.springframework.web.client.HttpServerErrorException: 509 Bandwidth Limit Exceeded

Home

[kudlav]

What's the quota of requests per minute? I am making new request 3 seconds after last recieved results and still getting this error (so less frequent than 3 seconds).