Site Monitoring still not working.

Uptime monitoring is not working on any of my sites. My hub is showing the downtime on nearly all my sites, but they are up.
For example this one:
https://monosnap.com/file/0aT6dPUbRjsA6hNcnvHXVc4Hk5LJLV
https://monosnap.com/file/Wb1XqY91uECtl4agcny583Ry6KXS4O

Please Check and help.