gadmin-proftpd crashed with SIGSEGV in g_type_check_instance_cast()

[Infinity_]

Binary package hint: gadmin-proftpd

$sudo gadmin-proftpd
returns "core dumped" info and the management gui don't show up.

ProblemType: Crash
Architecture: i386
CrashCounter: 1
DistroRelease: Ubuntu 8.10
ExecutablePath: /usr/sbin/gadmin-proftpd
NonfreeKernelModules: nvidia
Package: gadmin-proftpd 1:0.2.9-1
ProcAttrCurrent: unconfined
ProcCmdline: /usr/sbin/gadmin-proftpd
ProcEnviron:
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/X11R6/bin
 LANG=zh_TW.UTF-8
 SHELL=/bin/bash
Signal: 11
SourcePackage: gadmin-proftpd
Stacktrace:
 #0 0xb787a5c8 in g_type_check_instance_cast ()
    from /usr/lib/libgobject-2.0.so.0
 #1 0x0804c95a in ?? ()
 #2 0xb761b685 in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6
 #3 0x0804c4c1 in ?? ()
StacktraceTop:
 g_type_check_instance_cast ()
 ?? ()
 __libc_start_main () from /lib/tls/i686/cmov/libc.so.6
 ?? ()
Title: gadmin-proftpd crashed with SIGSEGV in g_type_check_instance_cast()
Uname: Linux 2.6.27-4-generic i686
UserGroups: