System is rebooted automatically

Hello

I have an Ubuntu18.04 but my system is rebooted automatically, here I paste the messages:

$ journalctl -ep err
Jun 06 09:55:03 cloudprivate kernel: .. rk pwm remotectl v1.1 init
Jun 06 09:55:03 cloudprivate kernel: rockchip-dmc dmc: unable to get devfreq-event device : dfi
Jun 06 09:55:03 cloudprivate kernel: rockchip-dmc dmc: failed to get vop bandwidth to dmc rate
Jun 06 09:55:03 cloudprivate kernel: devfreq dmc: Couldn’t update frequency transition information.
Jun 06 09:55:03 cloudprivate kernel: devfreq ff300000.gpu: Couldn’t update frequency transition information.
Jun 06 09:55:03 cloudprivate kernel: cgroup: cgroup2: unknown option “nsdelegate”
– Reboot –
Jun 06 09:58:45 cloudprivate kernel: genirq: Setting trigger mode 8 for irq 176 failed (gic_set_type+0x0/0x68)
Jun 06 09:58:45 cloudprivate kernel: vcc_sd: regulator get failed, ret=-517
Jun 06 09:58:45 cloudprivate kernel: vcc_host_5v: regulator get failed, ret=-517
Jun 06 09:58:45 cloudprivate kernel: rk-vcodec vpu_combo: failed on clk_get clk_cabac
Jun 06 09:58:45 cloudprivate kernel: rk-vcodec vpu_combo: failed on clk_get clk_core
Jun 06 09:58:45 cloudprivate kernel: rk-vcodec vpu_combo: could not find power_model node
Jun 06 09:58:45 cloudprivate kernel: rockchip-vop ff370000.vop: invalid resource
Jun 06 09:58:45 cloudprivate kernel: rockchip-vop ff370000.vop: invalid resource
Jun 06 09:58:45 cloudprivate kernel: i2c i2c-4: of_i2c: modalias failure on /hdmi@ff3c0000/ports
Jun 06 09:58:45 cloudprivate kernel: rk_gmac-dwmac ff540000.ethernet: cannot get clock clk_mac_speed
Jun 06 09:58:45 cloudprivate kernel: .. rk pwm remotectl v1.1 init
Jun 06 09:58:45 cloudprivate kernel: rockchip-dmc dmc: unable to get devfreq-event device : dfi
Jun 06 09:58:45 cloudprivate kernel: rockchip-dmc dmc: failed to get vop bandwidth to dmc rate
Jun 06 09:58:45 cloudprivate kernel: devfreq dmc: Couldn’t update frequency transition information.
Jun 06 09:58:45 cloudprivate kernel: devfreq ff300000.gpu: Couldn’t update frequency transition information.
Jun 06 09:58:45 cloudprivate kernel: cgroup: cgroup2: unknown option “nsdelegate”

Could someone help me?

Did the automatic reboot occur with the official firmware?

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