Jetpack Boost breaking website

Hello,

My website has started loading with all the formatting stripped (just as HTML) – it loads correctly initially and then reverts. I have traced the issue back to Jetpack Boost (which had just auto-updated) and when I disabled the plugin the website started working again. I’ve seen other recommendations on this forum to disable the customisations and re-enable them one by one, but I’m not able to disable any of the customisations – the toggle just won’t move.

At the top of the Jetpack Boost page I’m getting the following error:

Failed to load Speed Scores

HTTP 404 error received while communicating with the server.

Failed to load performance history

DS request failed: 404{ “name”: “DataSyncError”, “errorData”: { “namespace”: “jetpack_boost_ds”, “key”: “performance_history”, “endpoint”: “performance-history”, “method”: “GET”, “location”: “https://theclockworks.org/wp-json/jetpack-boost-ds/performance-history”, “status”: “response_not_ok”, “data”: {} } }

I’m using the Blocksy theme.

Thanks

The page I need help with: [log in to see the link]