The program always halt !

The program always halt, I have to restart it and resume normal.

I found there is message prompt when I start the applications manager.

WARNING : There is insufficient hard disk space for proper functioning of Applications Manager.

but I have checked the hard disk space, I don't think there is any insufficient problem.

[root@ AppManager7]# df -ah
Filesystem Size Used Avail Use% Mounted on
/dev/cciss/c0d0p2 2.0G 633M 1.3G 34% /
proc 0 0 0 - /proc
sysfs 0 0 0 - /sys
devpts 0 0 0 - /dev/pts
/dev/cciss/c0d0p1 99M 14M 81M 14% /boot
/dev/mapper/VG01-LV01
20G 217M 19G 2% /data
/dev/mapper/VG02-LV00
194G 11G 174G 6% /data2
tmpfs 1.7G 0 1.7G 0% /dev/shm
/dev/mapper/VG01-LV03
20G 6.3G 13G 34% /disk_bak
/dev/mapper/VG00-LV02
3.9G 137M 3.6G 4% /home
/dev/mapper/VG01-LV00
20G 984M 18G 6% /local
/dev/mapper/VG01-LV02
20G 190M 19G 2% /log
/dev/mapper/VG00-LV03
2.0G 68M 1.8G 4% /tmp
/dev/mapper/VG00-LV00
16G 3.6G 12G 24% /usr
/dev/mapper/VG00-LV01
7.8G 322M 7.1G 5% /var
none 0 0 0 - /proc/sys/fs/binfmt_misc
#
[root@ AppManager7]# pwd
/data/AdventNet/ME/AppManager7
The above is the path that I stored the application.
#

When the program halt, I can't find any problem in the linux console.
Just found the web GUI, the data is not updated. Such as the system time appears 1400, but the monitor poll time is wrong(next poll time is 1100).

What is the problem ?