Open Stack

Hi all,
we have installed Openstack Xena in our cloud infrastructure (OS 
Centos-Stream 8) and we find a problem with the delete of images and 
snapshots via dashboard. The delete command returns "Error: Unable to 
delete Image:xxx".
Via command line the delete works well.
Looking in glance logs  I don't find any error message.
The only error message is in a httpd log "ssl_error_log:[Thu Mar 31 
09:54:28.857689 2022] [wsgi:error] [pid 315710:tid 140368604612352] 
[remote 192.168.60.229:59240] Internal Server Error: 
/dashboard/api/glance/images/9d519edb-5690-4660-a6e0-e44f9e2ab58f/"
but it doesn't provide useful info for the debug.
The creation of images via dashboard works well.
Did you experienced this problem? Have you suggestions about it?

Thanks,
cheers
     Federica