Online score issue

I have an issue with the online score on all of my nodes. There has been no change in the score since around November 19, even though some nodes were down for a few hours. Now, since yesterday, some scores have dropped by 15–20% in a single day, even without any faults in the last few days. Why?

At my place too, there was a 2-hour outage and a 4-hour outage last month on my server. Normaly they didn’t come down so mutch, by me it is only for EU and US:

Do you have an audits history after November 19 on satellites in question?

seems to be fixed on all my nodes now. whatever happened