Can't upgrade old Ubuntu, ошибка processing package fontconfig

гm running old Убунту Сервер 13.04 (raring), and trying to upgrade or even install any packages гm getting the following ошибка:

root@oem-mobilidade:~# sudo apt-get upgrade -y
Lendo listas de pacotes... Pronto
Construindo árvore de dependências       
Lendo informação de estado... Pronto
0 pacotes atualizados, 0 pacotes novos instalados, 0 a serem removidos e 0 não atualizados.
1 pacotes não totalmente instalados ou removidos.
Depois desta operação, 0 B adicionais de espaço em disco serão usados.
Configurando fontconfig (2.11.0-0ubuntu4.1) ...
Regenerating fonts cache... failed.
See /var/log/fontconfig.log for more information.
dpkg: error processing package fontconfig (--configure):
 sub-processo script post-installation instalado retornou estado de saída de erro 1
Erros foram encontrados durante o processamento de:
 fontconfig
E: Sub-process /usr/bin/dpkg returned an error code (1)




root@oem-mobilidade:~# cat /var/log/fontconfig.log
/usr/share/fonts: caching, new cache contents: 0 fonts, 1 dirs
/usr/share/fonts/truetype: caching, new cache contents: 0 fonts, 1 dirs
/usr/share/fonts/truetype/ttf-dejavu: caching, new cache contents: 21 fonts, 0 dirs
/usr/X11R6/lib/X11/fonts: skipping, no such directory
/usr/local/share/fonts: caching, new cache contents: 0 fonts, 0 dirs
/.local/share/fonts: fc-cache: symbol lookup error: fc-cache: undefined symbol: FcStrListFirst

PS: Sorry for the portuguese output.

I read some articles telling to purge fontconfig package and reinstalling it, but гm afraid of doing this because of this:

The following packages will be REMOVED:
  ca-certificates-java* cacti* cacti-spine* default-jre-headless* fontconfig* fontconfig-config* icedtea-7-jre-jamvm* libcairo2* libfontconfig1* libgd2-xpm* libpango1.0-0*
  librrd4* libxft2* openjdk-7-jre-headless* php5-gd* rrdtool* tomcat7* tomcat7-admin* tomcat7-common* tomcat7-docs* tomcat7-examples*

This server runs several applications, like Cacti, and other Веб based tools that depends on индеец-апачи, tomcat, php, и т.д., so гm worried about removing those packages above.

Please, help!!!