The storage server failed, and the seed data was rolled back to half an hour before the failure.
The database and computing servers did not fail and the data was not rolled back.
Some newly issued seeds between 1:00 and 2:37 a.m. on the 29th may have 404 failures.

28888 Bingjing, please accept
5 re-signing cards, please accept
Bingjing*18888
Re-signing card*2
Downtime compensation