systemd[1]: Stopped MySQL Community Server

10-10-50-101 systemd[1]: Stopped MySQL Community Server. -- Subject: Unit mysql.service has finished shutting down -- Defined-By: systemd

I have updated to ubuntu 16.04 and mySql Stopped working

systemctl status mysql.service:

● mysql.service - MySQL Community Server
   Loaded: loaded (/lib/systemd/system/mysql.service; disabled; vendor preset: enabled)
   Active: activating (start-post) (Result: exit-code) since Mon 2019-12-09 16:36:00 UTC; 11s ago
  Process: 16289 ExecStart=/usr/sbin/mysqld (code=exited, status=1/FAILURE)
  Process: 16280 ExecStartPre=/usr/share/mysql/mysql-systemd-start pre (code=exited, status=0/SUCCESS)
 Main PID: 16289 (code=exited, status=1/FAILURE);         : 16290 (mysql-systemd-s)
    Tasks: 2
   Memory: 316.0K
      CPU: 294ms
   CGroup: /system.slice/mysql.service
           └─control
             ├─16290 /bin/bash /usr/share/mysql/mysql-systemd-start post
             └─16343 sleep 1

Dec 09 16:36:00 ip-10-10-50-101 systemd[1]: mysql.service: Service hold-off time over, scheduling restart.
Dec 09 16:36:00 ip-10-10-50-101 systemd[1]: Stopped MySQL Community Server.
Dec 09 16:36:00 ip-10-10-50-101 systemd[1]: Starting MySQL Community Server...
Dec 09 16:36:02 ip-10-10-50-101 systemd[1]: mysql.service: Main process exited, code=exited, status=1/FAILURE

journalctl -xe:

Dec 09 16:36:00 ip-10-10-50-101 sudo[16133]: pam_unix(sudo:session): session closed for user root
Dec 09 16:36:00 ip-10-10-50-101 systemd[1]: mysql.service: Service hold-off time over, scheduling restart.
Dec 09 16:36:00 ip-10-10-50-101 systemd[1]: Stopped MySQL Community Server.
-- Subject: Unit mysql.service has finished shutting down
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit mysql.service has finished shutting down.
Dec 09 16:36:00 ip-10-10-50-101 systemd[1]: Starting MySQL Community Server...
-- Subject: Unit mysql.service has begun start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit mysql.service has begun starting up.
Dec 09 16:36:02 ip-10-10-50-101 systemd[1]: mysql.service: Main process exited, code=exited, status=1/FAILURE
Dec 09 16:36:30 ip-10-10-50-101 systemd[1]: Failed to start MySQL Community Server.
-- Subject: Unit mysql.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit mysql.service has failed.
--
-- The result is failed.
Dec 09 16:36:30 ip-10-10-50-101 systemd[1]: mysql.service: Unit entered failed state.
Dec 09 16:36:30 ip-10-10-50-101 systemd[1]: mysql.service: Failed with result 'exit-code'.
Dec 09 16:36:30 ip-10-10-50-101 systemd[1]: mysql.service: Service hold-off time over, scheduling restart.
Dec 09 16:36:30 ip-10-10-50-101 systemd[1]: Stopped MySQL Community Server.
-- Subject: Unit mysql.service has finished shutting down
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit mysql.service has finished shutting down.
Dec 09 16:36:30 ip-10-10-50-101 systemd[1]: Starting MySQL Community Server...
-- Subject: Unit mysql.service has begun start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit mysql.service has begun starting up.
Dec 09 16:36:32 ip-10-10-50-101 systemd[1]: mysql.service: Main process exited, code=exited, status=1/FAILURE
lines 3188-3226/3226 (END)

Any helping hand?

Thank you