Squid não consigo instalar

[BrainnerRoger]

Ao tentar instalar o pacote do squid, apresenta um erro:

The process will require 27 MiB more space.
7 MiB to be downloaded.
pkg: https://pkg.pfsense.org/pfSense_v2_3_1_amd64-pfSense_v2_3_1/All/pfSense-pkg-squid-0.4.16_2.txz: Not Found
Failed

o comanda df-h me tras:

[2.3.3-RELEASE][root@Convidados.localdomain]/root: df -h
Filesystem Size Used Avail Capacity Mounted on
/dev/ufsid/5b23eb30bbd96959 143G 617M 131G 0% /
devfs 1.0K 1.0K 0B 100% /dev
/dev/md0 3.4M 88K 3.0M 3% /var/run
devfs 1.0K 1.0K 0B 100% /var/dhcpd/dev

Alguém já teve este problema?