I just compiled/installed httrack. Following is the version:

HTTrack Website Copier/3.42-2+libhtsjava.so.2

When I ran a small mirror job, httrack crashed and displayed  following error.
Is it a bug? How can I fix it?
Thanks
Asif


*** glibc detected *** httrack: free(): invalid pointer: 0xbff3cdc0 ***) - OK
======= Backtrace: =========
/lib/tls/i686/cmov/libc.so.6[0xb7d8ad65]
/lib/tls/i686/cmov/libc.so.6(cfree+0x90)[0xb7d8e800]
/usr/local/lib/libhttrack.so.2(back_unserialize+0x55)[0xb7ec1645]
/usr/local/lib/libhttrack.so.2[0xb7ec6588]
/usr/local/lib/libhttrack.so.2(hts_mirror_wait_for_next_file+0x181c)[0xb7ea1b6c]
/usr/local/lib/libhttrack.so.2(httpmirror+0x4f0a)[0xb7e98d1a]
/usr/local/lib/libhttrack.so.2(hts_main2+0x3b0f)[0xb7f01adf]
httrack[0x804956e]
/lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe0)[0xb7d37050]
httrack[0x8048ef1]
======= Memory map: ========
08048000-0804d000 r-xp 00000000 08:01 2235846    /usr/local/bin/httrack
0804d000-0804e000 rwxp 00004000 08:01 2235846    /usr/local/bin/httrack
0804e000-080db000 rwxp 0804e000 00:00 0          [heap]
b6400000-b6421000 rwxp b6400000 00:00 0
b6421000-b6500000 ---p b6421000 00:00 0
b6590000-b659a000 r-xp 00000000 08:01 1011854    /lib/libgcc_s.so.1
b659a000-b659b000 rwxp 0000a000 08:01 1011854    /lib/libgcc_s.so.1
b65a3000-b65b2000 r-xp 00000000 08:01 1011876   
/lib/tls/i686/cmov/libresolv-2.6.1.so
b65b2000-b65b4000 rwxp 0000f000 08:01 1011876   
/lib/tls/i686/cmov/libresolv-2.6.1.so
b65b4000-b65b6000 rwxp b65b4000 00:00 0
b65b6000-b65ba000 r-xp 00000000 08:01 1011869   
/lib/tls/i686/cmov/libnss_dns-2.6.1.so
b65ba000-b65bc000 rwxp 00003000 08:01 1011869   
/lib/tls/i686/cmov/libnss_dns-2.6.1.so
b65bc000-b65c5000 r-xp 00000000 08:01 1011870   
/lib/tls/i686/cmov/libnss_files-2.6.1.so
b65c5000-b65c7000 rwxp 00008000 08:01 1011870   
/lib/tls/i686/cmov/libnss_files-2.6.1.so
b65cd000-b7b97000 rwxp b65cd000 00:00 0
b7b97000-b7cc2000 r-xp 00000000 08:01 1029727   
/usr/lib/i686/cmov/libcrypto.so.0.9.8
b7cc2000-b7cd7000 rwxp 0012a000 08:01 1029727   
/usr/lib/i686/cmov/libcrypto.so.0.9.8
b7cd7000-b7cda000 rwxp b7cd7000 00:00 0
b7cda000-b7d17000 r-xp 00000000 08:01 1029728   
/usr/lib/i686/cmov/libssl.so.0.9.8
b7d17000-b7d1b000 rwxp 0003c000 08:01 1029728   
/usr/lib/i686/cmov/libssl.so.0.9.8
b7d1b000-b7d1d000 rwxp b7d1b000 00:00 0
b7d1d000-b7d1f000 r-xp 00000000 08:01 1011864   
/lib/tls/i686/cmov/libdl-2.6.1.so
b7d1f000-b7d21000 rwxp 00001000 08:01 1011864   
/lib/tls/i686/cmov/libdl-2.6.1.so
b7d21000-b7e65000 r-xp 00000000 08:01 1011861   
/lib/tls/i686/cmov/libc-2.6.1.so
b7e65000-b7e66000 r-xp 00143000 08:01 1011861   
/lib/tls/i686/cmov/libc-2.6.1.so
b7e66000-b7e68000 rwxp 00144000 08:01 1011861   
/lib/tls/i686/cmov/libc-2.6.1.so
b7e68000-b7e6b000 rwxp b7e68000 00:00 0
b7e6b000-b7e7f000 r-xp 00000000 08:01 312187     /usr/lib/libz.so.1.2.3.3
b7e7f000-b7e80000 rwxp 00013000 08:01 312187     /usr/lib/libz.so.1.2.3.3
b7e80000-b7f55000 r-xp 00000000 08:01 327115    
/usr/local/lib/libhttrack.so.2.0.42
b7f55000-b7f58000 rwxp 000d4000 08:01 327115    
/usr/local/lib/libhttrack.so.2.0.42
b7f58000-b7f6c000 r-xp 00000000 08:01 1011875   
/lib/tls/i686/cmov/libpthread-2.6.1.so
b7f6c000-b7f6e000 rwxp 00013000 08:01 1011875   
/lib/tls/i686/cmov/libpthread-2.6.1.so
b7f6e000-b7f72000 rwxp b7f6e000 00:00 0
b7f72000-b7f76000 rwxp b7f72000 00:00 0
b7f76000-b7f78000 r-xp 00000000 08:01 2268485   
/usr/local/lib/libhtsjava.so.2.0.42
b7f78000-b7f79000 rwxp 00001000 08:01 2268485   
/usr/local/lib/libhtsjava.so.2.0.42
b7f79000-b7f7a000 rwxp b7f79000 00:00 0
b7f7a000-b7f94000 r-xp 00000000 08:01 1014788    /lib/ld-2.6.1.so
b7f94000-b7f96000 rwxp 00019000 08:01 1014788    /lib/ld-2.6.1.so
bff03000-bff96000 rw-p bff6d000 00:00 0          [stack]
ffffe000-fffff000 r-xp 00000000 00:00 0          [vdso]