The error shown Jul 10 04:51:52 main-menu[213]: WARNING **: Configuring 'iso-scan' failed with error code 1 Jul 10 04:51:52 main-menu[213]: WARNING **: Menu item 'iso-scan' failed.
is the same symptom shown in iso-scan bug 640789, caused by an unquoted $dir variable in a find command within iso-scan.postinst. OP, did the volume you were trying to query have any paths with spaces in it? That would cause this error.
