We have encountered a bug in out API that has updated all the monitors with a specific configuration. It occured yesterday, 22. July at 23h30 UTC. Until this morning, 23. July at 8h30 UTC, most monitors have experienced downtime. All monitors created past 23h30 UTC are not affected.
We have reverted the changes from a DB backup from the incident time and have fixed the bug.
We apologize for any inconvenience. To encounter such issue, we will increase the test coverage of our API to mitigate future issues.