Rig stop working

Hello,

I’m running a rig with 11 GPUs ( Radeon RX 580 (GB Nitro + ) and MB: Gigabyte B250-FinTech. Rig was woking for a few weeks fine, but since 2-3 days I have a lot of errors. rigs freeze, and stop working.

I checked the logs, but I do not know… where is the error… Can you please help me ? thank you…

journalctl log:

system log: