cannot remove file, invalid exchange. zfs metadata corupted

[AxelTwin]

Hi there,

After a power outage one of my pool ended up with an unrecoverable error:

root@hyperviser1:/# zpool status -v
  pool: rpool
 state: ONLINE
status: One or more devices has experienced an unrecoverable error.  An
        attempt was made to correct the error.  Applications are unaffected.
action: Determine if the device needs to be replaced, and clear the errors
        using 'zpool clear' or replace the device with 'zpool replace'.
   see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-9P
  scan: scrub repaired 0B in 02:26:16 with 1 errors on Sun Mar 17 01:13:55 2024
config:

        NAME                                                STATE     READ WRITE CKSUM
        rpool                                               ONLINE       0     0     0
          mirror-0                                          ONLINE       0     0     0
            ata-WDC_WD20EZRX-00D8PB0_WD-WCC4N2HF0181-part3  ONLINE       0     0    24
            ata-WDC_WD20EZRX-00D8PB0_WD-WMC4M0H9J9PX-part3  ONLINE       0     0    24

I managed to locate the errore but I am not able to delete the file:

root@hyperviser1:/rpool/data/subvol-176-disk-0/opt/zimbra/store/0/10/msg/2# rm 9557-55138.msg
rm: cannot remove '9557-55138.msg': Invalid exchange

The container with the error is running fine but this is annoying because I am not able to make any backup as it fails everytime because of that corupted metadata.

I tried to scrub the disk, clear errors but no luck

Any tips to fix this ?