Sheriff-o-Matic is reporting errors when trying to start up the gae_ts_mon backend module: https://pantheon.corp.google.com/errors?time=PT6H&refresh=off&order=COUNT_DESC&project=sheriff-o-matic&organizationId=433637338589

Maybe this is just an issue of deploying a new version of the monitoring code, or maybe it was deployed from a broken checkout, or maybe something worse. Either way, it needs to be investigated and fixed because right now SoM isn't reporting any metrics.