Squid

Quando executo o comando RunCache& aparece a mensagem :

Running: squid -sY >> /var/lib/squid/squid.out 2>&1
/usr/bin/RunCache: line 35: 16603 Aborted squid -NsY $conf >>$logdir/squid.out 2>&1
Running: squid -sY >> /var/lib/squid/squid.out 2>&1
/usr/bin/RunCache: line 35: 16610 Aborted squid -NsY $conf >>$logdir/squid.out 2>&1
Running: squid -sY >> /var/lib/squid/squid.out 2>&1
/usr/bin/RunCache: line 35: 16617 Aborted squid -NsY $conf >>$logdir/squid.out 2>&1
Running: squid -sY >> /var/lib/squid/squid.out 2>&1
/usr/bin/RunCache: line 35: 16624 Aborted squid -NsY $conf >>$logdir/squid.out 2>&1
Running: squid -sY >> /var/lib/squid/squid.out 2>&1
/usr/bin/RunCache: line 35: 16631 Aborted squid -NsY $conf >>$logdir/squid.out 2>&1
Running: squid -sY >> /var/lib/squid/squid.out 2>&1
/usr/bin/RunCache: line 35: 16638 Aborted squid -NsY $conf >>$logdir/squid.out 2>&1
RunCache: EXITING DUE TO REPEATED, FREQUENT FAILURES

Algué, pode me ajudar??!!