amcheck-device terminated with signal 11 with Amazon S3 Tapedevice

I am using Amanda 3.5.1 from the Debian 12 repo:

backup@sharky5:~$ dpkg-query -l amanda\*|grep ^ii 
ii  amanda-client  1:3.5.1-11+deb12u1 amd64        Advanced Maryland Automatic Network Disk Archiver (Client) 
ii  amanda-common  1:3.5.1-11+deb12u1 amd64        Advanced Maryland Automatic Network Disk Archiver (Libs) 
ii  amanda-server  1:3.5.1-11+deb12u1 amd64        Advanced Maryland Automatic Network Disk Archiver (Server)

And using the stock amanda-S3.conf, with some minor changes, I am get an error from amcheck:
backup@sharky5:~$ amcheck sharky5
Amanda Tape Server Host Check
NOTE: Holding disk '/var/lib/amanda/holdings/sharky5': 40548 MB disk space available, using 12000 MB as requested
ERROR: amcheck-device terminated with signal 11
NOTE: conf info dir '/var/log/amanda/sharky5curinfo' does not exist
      it will be created on the next run
NOTE: index dir '/var/log/amanda/sharky5/index' does not exist
      it will be created on the next run
Server check took 0.242 seconds
Amanda Backup Client Hosts Check

Client check: 1 host checked in 2.160 seconds. 0 problems found.
(brought to you by Amanda 3.5.1)

what am I doing wrong?

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