[Koha] Error while adding authority

[Walid AZIZ]

Hi, 
When we try to add a new authority, we have the following error : 
Koha error 

The following fatal error has occurred: 

No _parse_* routine defined on this driver (If it is a filter, remember to set the Parent property. If you call the parse() method, make sure to set a Source. You may want to call parse_uri, parse_string or parse_file instead.) [XML::SAX::Expat=HASH(0x87fb420)] at /usr/share/perl5/XML/SAX/Base.pm line 2616. 

Apache	Server version: Apache/2.2.9 (Debian) Server built: Aug 8 2008 17:37:15 
Koha	3.00.00.107 
Koha DB	3.0000107 
MySQL	mysql Ver 14.12 Distrib 5.0.51a, for debian-linux-gnu (i486) using readline 5.2 
OS	Linux komak 2.6.25.4dedibox-r9-smp-x32 #1 SMP Tue May 20 15:28:05 CEST 2008 i686 GNU/Linux 
Perl	5.010000 

Thanks for your help