Sorry guys,
OTP didn't solve it and restart didn't help.
ESA web console shows "Unable to determine the most recent product version."
We have latest 2.8.23.0 and using SENDING and PROVISIONING by ESET servers.
If you accept OTP message on mobile nothing happened and after expiration you can enter Master Key.
ESA console shows
Error while getting push data from Provisioning. Suppressing later error messages.
Exception while getting the latest version, status: -3, errorMsg: No packages., os: windows, platform: x64, language: en_US