The script did not produce proper HTTP headers. Please see the error log to see the detail of the errors. Depending on the server configuration, you can also run thisscript under CGIWrap debugging. Usually, either rename or linkthe script temporarily to a file which ends with .cgidextension, or add a AddHandler cgi-script-debug .cgiline to your .htaccess file.
[error_log] Can't call method "delete" on an undefined value at ./module/elves.pl line 714. [Mon Aug 18 23:39:22.253946 2014] [cgid:error] [pid 5747:tid 140573130352384] [client xxx.xxx.xxx.xxx:59594] End of script output before headers: admin.cgi