LVM thin pool is not activated what to do?

Question

LVM

Hello. There was a thunderstorm, the server under Ubuntu 16.04 turned off despite the UPS. On the server, the exchange folder (/srv/data) is under samba. /srv/data mounts the thin volume vg/thinpool/data from LVM.
After a thunderstorm, the volume group (vg) and the volume (data) in particular stopped being activated. I tried lvconvert --repair vg/thinpool didn't help, I tried to restore the meta via vgcfrestore, the effect is the same. The data section is very necessary, there are no backups. I call on the LVM gurus, I enclose the exhaust:

spoiler

lvchange -aey vg
device-mapper: resume ioctl on (252:2) failed: Invalid argument
Unable to resume vg-thinpool-tpool (252:2)
device-mapper: resume ioctl on (252:2) failed: Invalid argument
Unable to resume vg-thinpool-tpool (252:2)

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lvscan
inactive '/dev/vg/thinpool' [1.79 TiB] inherit
inactive '/dev/vg/data' [950.00 GiB] inherit

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lvs -a
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
data vg Vwi---tz-- 950.00g thinpool
[lvol0_pmspare] vg ewi------- 16.00g
thinpool vg twi---tz-- 1.79t
[thinpool_tdata] vg Twi-a----- 1.79t
[thinpool_tmeta] vg ewi-ao---- 16.00g

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lvconvert --repair vg/thinpool
truncating metadata device to 4161600 4k blocks
Transaction id 6469 from pool "vg/thinpool" does not match repaired transaction id 6468 from /dev/mapper/vg-lvol0_pmspare.
Volume group "vg" has insufficient free space (229 extents): 4096 required.
WARNING: If everything works, remove "vg/thinpool_meta0".
WARNING: Use pvmove command to move "vg/thinpool_tmeta" on the best fitting PV.