Google Analytics stopped working all reports except Real-Time. What to do?

Question

Google Analytics

All Google Analytics reports suddenly stopped working except for Real-Time.
Everywhere on zeros since December, 3rd. Through the web and via API.
At the same time, statistics are collected and this can be seen in the Real-Time tab, where it correctly indicates the number of active visitors now on the site, and popular active pages, and referral sources, etc.
Wrote to Google via the Feedback form, but no response for the second day.
Perhaps someone faced a similar problem? Any advice on how to solve it?
UPDATE: the clock starts on December 5th and data for December 3rd appeared, but for December 4th everything is zero.

Answer 1

Most likely, Google began to perceive your project as a high-load one - such projects are not immediately calculated in GA. The toaster, for example, was calculated in real-time for the first three days after the launch, but now with a large lag (several days).

Answer 2

Google Analytics in the free version has many restrictions on the amount of information collected. Your site has clearly exceeded these limits. But the data collection does not stop, it just slows down a lot, and only a part of the incoming data starts to be taken into account - you will even see a postscript that the reports are based on 25% of the collected data, as an example.
Alternatives - paid Google Analyst, paid SiteCatalyst, free Pivik and log analysis.

Answer 3

And what is the attendance of the resource? With a large value, the statistics do not appear immediately.

Answer 4

Thanks for answers.
Indeed, attendance has skyrocketed. For three days of December the site was visited by about 1 million. I don't know if this can be considered a high-load project, but usually this is a monthly audience.
Another issue: Some site logic that worked based on GA stats reports for the last few hours now doesn't work properly. Are there alternatives?