DS_SLAM_TUM.launch has problems after running for tens of seconds

[wangxiaoshuai223]

DS_SLAM_TUM.launch has problems after running for tens of seconds，can you help me

[TUM-2] process has died [pid 6832, exit code -6, cmd /home/mm/catkin_ws3/src/DS-SLAM/Examples/ROS/ORB_SLAM2_PointMap_SegNetM/TUM /home/mm/catkin_ws3/src/DS-SLAM/Examples/ROS/ORB_SLAM2_PointMap_SegNetM/../../../Vocabulary/ORBvoc.bin /home/mm/catkin_ws3/src/DS-SLAM/Examples/ROS/ORB_SLAM2_PointMap_SegNetM/TUM3.yaml /home/mm/catkin_ws3/src/DS-SLAM/rgbd_dataset_freiburg3_walking_xyz /home/mm/catkin_ws3/src/DS-SLAM/rgbd_dataset_freiburg3_walking_xyz/associate.txt /home/mm/catkin_ws3/src/DS-SLAM/Examples/ROS/ORB_SLAM2_PointMap_SegNetM/prototxts/segnet_pascal.prototxt /home/mm/catkin_ws3/src/DS-SLAM/Examples/ROS/ORB_SLAM2_PointMap_SegNetM/models/segnet_pascal.caffemodel /home/mm/catkin_ws3/src/DS-SLAM/Examples/ROS/ORB_SLAM2_PointMap_SegNetM/tools/pascal.png __name:=TUM __log:=/home/mm/.ros/log/e6c14834-bd9a-11ea-b802-80fa5b6b2c8a/TUM-2.log].
log file: /home/mm/.ros/log/e6c14834-bd9a-11ea-b802-80fa5b6b2c8a/TUM-2*.log