reminder and notes sync, music, appstore stop working

About a week ago, all synchronization related programs stopped working on mac. Reminders and notes are updated once every 12 hours instead of an instant update, it is generally impossible to go to apple music and the app store. All the recommendations given in the instructions were followed, log in and out of your apple account, restart your computer, upgrade to the latest version of mac and iphone, connect to another wifi. People in different topics write the same thing - you have problems with synchronization servers, namely on mac. Pay attention to the problem, reminders, notes, apple music, app store, any programs that require synchronization with your servers have stopped working on all macs. If you have a shortage of people in data centers due to a pandemic, then say so. No need to throw off links to standard instructions, this does not help !!! Please give an honest answer, what really happens!

Waiting for an answer, thanks!

Catalina 10.15.4

macbook air 2019