importing pool reboots freenas

I have a zfs pool which i raidz1
One drive dont report anymore to bios and is UNAVAIL in zpool import result.
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pool: supervolume
id: 3261155225326581703
state: DEGRADED
status: One or more devices are missing from the system.
action: The pool can be imported despite missing or damaged devices. The
fault tolerance of the pool may be compromised if imported.
see:...

importing pool reboots freenas