National Generation and Regional Intensity API working haphazardly

[adfi]

Hi, I've been using the generation API for a while now and not had any problems with it until now. Today I noticed it's not working reliably, when accessing https://api.carbonintensity.org.uk/generation/ I'm getting HTTP 500 errors. Sometimes it does work though so I'm not sure what the issue is.

[ZooteeMan]

Same for me, although it almost exclusively returns Error 500. Noticed that it started around 15:30ish on 27th. Looking in the wget/curl logs I can see the following appear often:

Connection state changed (MAX_CONCURRENT_STREAMS == 128)!