receiving signal SIGSEGV, Segmentation fault when running a node

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Hello everyone,

I getting "Segmentation fault (core dumped)" error when running a node, despite the fact that it worked well before

when I run it with gdb I'm getting this

Starting program: /home/jafar/catkin_ws/devel/lib/kuka_arm/trajectory_sampler 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffd8257700 (LWP 3192)]
[New Thread 0x7fffd7a56700 (LWP 3193)]
[New Thread 0x7fffd7255700 (LWP 3194)]
[New Thread 0x7fffd6a54700 (LWP 3199)]
[New Thread 0x7fffd6253700 (LWP 3200)]
[New Thread 0x7fffd5a52700 (LWP 3213)]

Thread 1 "trajectory_samp" received signal SIGSEGV, Segmentation fault.
0x00007ffff55d8f18 in ros::WallTime::now() ()
from /opt/ros/kinetic/lib/librostime.so

Anyone know why this's happening ..?

Thanks