ntop assert failure: *** glibc detected *** /usr/sbin/ntop: double free or corruption (fasttop): 0x00007fb0302e6560 ***

It crashed, I don't know why.

ProblemType: Crash
DistroRelease: Ubuntu 12.10
Package: ntop 3:4.99.3+ndpi5517+dfsg1-1
ProcVersionSignature: Ubuntu 3.5.0-37.38-lowlatency 3.5.7.16
Uname: Linux 3.5.0-37-lowlatency x86_64
ApportVersion: 2.6.1-0ubuntu12
Architecture: amd64
AssertionMessage: *** glibc detected *** /usr/sbin/ntop: double free or corruption (fasttop): 0x00007fb0302e6560 ***
Date: Wed Aug 14 13:18:35 2013
ExecutablePath: /usr/sbin/ntop
ExecutableTimestamp: 1340986113
InstallationDate: Installed on 2013-02-18 (177 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MarkForUpload: True
ProcCmdline: /usr/sbin/ntop -d -L -u ntop -P /var/lib/ntop --access-log-file /var/log/ntop/access.log -i eth0 -p /etc/ntop/protocol.list -O /var/log/ntop
ProcCwd: /
ProcEnviron:
 TERM=linux
 PATH=(custom, no user)
 LANG=C
Signal: 6
SourcePackage: ntop
StacktraceTop:
 __libc_message (do_abort=2, fmt=0x7fb05a6bc028 "*** glibc detected *** %s: %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:201
 malloc_printerr (action=3, str=0x7fb05a6bc218 "double free or corruption (fasttop)", ptr=<optimized out>) at malloc.c:5018
 ntop_safefree (ptr=ptr@entry=0x7fb05252fc48, file=file@entry=0x7fb05ab99aba "ip.c", line=line@entry=113) at leaks.c:182
 deleteFragment (fragment=<optimized out>, actualDeviceId=actualDeviceId@entry=0) at ip.c:113
 purgeOldFragmentEntries (actualDeviceId=0) at ip.c:265
Title: ntop assert failure: *** glibc detected *** /usr/sbin/ntop: double free or corruption (fasttop): 0x00007fb0302e6560 ***
UpgradeStatus: No upgrade log present (probably fresh install)
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