Particle filter failed

[Duy254]

When I tried running particle_filter.launch, I got this issue
[Particle_filter-7] process has died [pid 19303, exit code -11, cmd /home/nvidia/f110_ws/src/labs/particle_filter/src/particle_filter.py __name:=Particle_filter __log:=/home/nvidia/.ros/log/d6031876-28f7-11e9-addb-00044ba518a5/Particle_filter-7.log].
log file: /home/nvidia/.ros/log/d6031876-28f7-11e9-addb-00044ba518a5/Particle_filter-7*.log
[ WARN] [1549338074.654533721, 1531430588.597950101]: MessageFilter [target=map ]: Dropped 100.00% of messages so far. Please turn the [ros.rviz.message_notifier] rosconsole logger to DEBUG for more information.

Please help me out. Thank you.