Can't use an undefined value as a HASH reference at
        /usr/share/perl5/vendor_perl/SES.pm line 559 (#1)
    (F) A value used as either a hard reference or a symbolic reference must
    be a defined value.  This helps to delurk some insidious errors.

Uncaught exception from user code:
        Can't use an undefined value as a HASH reference at /usr/share/perl5/vendor_perl/SES.pm line 559.
        SES::call_ses('HASH(0x243cc00)', 'HASH(0x26a2138)') called at /opt/aws/apitools/ses/bin/ses-get-stats.pl line 168