Internal Server Error

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[3921]ERR: 32: Warning in Perl code: Use of uninitialized value in string eq at /home/zingomin/perl/Z/Utils.pm line 982.
[3921]ERR: 32: Warning in Perl code: Use of uninitialized value in string eq at /home/zingomin/perl/Z/Utils.pm line 867.
[3921]ERR: 32: Warning in Perl code: Use of uninitialized value in concatenation (.) or string at /home/zingomin/perl/Z/Utils.pm line 763.
[3921]ERR: 32: Warning in Perl code: Use of uninitialized value in concatenation (.) or string at /home/zingomin/perl/Z/Utils.pm line 347.
[3921]ERR: 32: Warning in Perl code: Use of uninitialized value in concatenation (.) or string at /home/zingomin/perl/Z/Utils.pm line 451.
[3921]ERR: 32: Warning in Perl code: Use of uninitialized value in addition (+) at /home/zingomin/perl/Z/Utils.pm line 452.
[3921]ERR: 32: Warning in Perl code: Use of uninitialized value in addition (+) at /home/zingomin/perl/Z/Utils.pm line 452.
[3921]ERR: 32: Warning in Perl code: Use of uninitialized value in addition (+) at /home/zingomin/perl/Z/Utils.pm line 452.
[3921]ERR: 32: Warning in Perl code: Use of uninitialized value in addition (+) at /home/zingomin/perl/Z/Utils.pm line 456.
[3921]ERR: 32: Warning in Perl code: Use of uninitialized value in addition (+) at /home/zingomin/perl/Z/Utils.pm line 456.
[3921]ERR: 24: Error in Perl code: Illegal division by zero at /home/zingomin/perl/Z/Utils.pm line 456.

Apache Embperl 2.3.0 [Mon Feb 6 05:56:59 2012]