After Update Error: "422 The change you requested was rejected."

Good day,

After updating Gitlab I get the following error message after login:

422 The change you requested was rejected.

After I entered the GitLab status command, I saw the alertmanager down.

down: alertmanager: 1s, normally up, want up; run: log: (pid 602) 534s
run: crond: (pid 623) 534s; run: log: (pid 606) 534s
run: gitaly: (pid 627) 534s; run: log: (pid 609) 534s
run: gitlab-monitor: (pid 614) 534s; run: log: (pid 605) 534s
run: gitlab-workhorse: (pid 619) 534s; run: log: (pid 611) 534s
run: logrotate: (pid 638) 534s; run: log: (pid 629) 534s
run: nginx: (pid 626) 534s; run: log: (pid 604) 534s
run: node-exporter: (pid 613) 534s; run: log: (pid 599) 534s
run: postgres-exporter: (pid 615) 534s; run: log: (pid 600) 534s
run: postgresql: (pid 625) 534s; run: log: (pid 608) 534s
run: prometheus: (pid 12843) 0s; run: log: (pid 603) 534s
run: redis: (pid 618) 534s; run: log: (pid 607) 534s
run: redis-exporter: (pid 622) 534s; run: log: (pid 610) 534s
run: sidekiq: (pid 616) 534s; run: log: (pid 601) 534s
run: unicorn: (pid 598) 534s; run: log: (pid 597) 534s