[Koha] Global symbol "%env" requires explicit package name

Hello, I'm unable to add new members because I get this error in my apache log: Global symbol "%env" requires explicit package name at /var/www/koha/cgi-bin/koha/moremember.pl line 231. Execution of /var/www/koha/cgi-bin/koha/moremember.pl aborted due to compilation errors. [Tue May 21 22:48:00 2002] [error] [client 127.0.0.1] Premature end of script headers: /var/www/koha/cgi-bin/koha/moremember.pl I'm using the latest CVS version of Koha. Can anybody explain what's wrong? Thanks, Mitch