Segmentation fault (Invalid permissions for mapped object [0x7fb67bc9f550])

[yxwang99]

Stack trace (most recent call last):
#10   Object "", at 0xffffffffffffffff, in 
#9    Object "/home/wyx/Code_ws/PredRecon/Planner/Code/devel/lib/exploration_manager/exploration_node", at 0x55d3a080f68d, in _start
#8    Source "../csu/libc-start.c", line 308, in __libc_start_main [0x7fb7655cc082]
#7    Object "/home/wyx/Code_ws/PredRecon/Planner/Code/devel/lib/exploration_manager/exploration_node", at 0x55d3a080d781, in main
#6    Object "/opt/ros/noetic/lib/libroscpp.so", at 0x7fb7bc46a60e, in ros::spin()
#5    Object "/opt/ros/noetic/lib/libroscpp.so", at 0x7fb7bc48243e, in ros::SingleThreadedSpinner::spin(ros::CallbackQueue*)
#4    Object "/opt/ros/noetic/lib/libroscpp.so", at 0x7fb7bc42ed72, in ros::CallbackQueue::callAvailable(ros::WallDuration)
#3    Object "/opt/ros/noetic/lib/libroscpp.so", at 0x7fb7bc42d301, in ros::CallbackQueue::callOneCB(ros::CallbackQueue::TLS*)
#2    Object "/opt/ros/noetic/lib/libroscpp.so", at 0x7fb7bc40b8a7, in ros::TimerManager<ros::Time, ros::Duration, ros::TimerEvent>::TimerQueueCallback::call()
#1    Object "/home/wyx/Code_ws/PredRecon/Planner/Code/devel/lib/libplan_env.so", at 0x7fb7bc56dc96, in fast_planner::MapROS::visCallback(ros::TimerEvent const&)
#0    Object "/home/wyx/Code_ws/PredRecon/Planner/Code/devel/lib/libplan_env.so", at 0x7fb7bc56d583, in fast_planner::MapROS::publishMapAll()
Segmentation fault (Invalid permissions for mapped object [0x7fb67bc9f550])
[exploration_node-1] process has died [pid 69427, exit code -11, cmd /home/wyx/Code_ws/PredRecon/Planner/Code/devel/lib/exploration_manager/exploration_node /odom_world:=/airsim_node/drone_1/odom_local_enu /map_ros/pose:=/airsim_node/drone_1/odom_local_enu /map_ros/depth:=/airsim_node/drone_1/front_center/DepthPerspective /map_ros/cloud:=/cloud __name:=exploration_node __log:=/home/wyx/.ros/log/5c5483fa-679f-11f0-9ca5-7374f92164cf/exploration_node-1.log].
log file: /home/wyx/.ros/log/5c5483fa-679f-11f0-9ca5-7374f92164cf/exploration_node-1*.log

I met this problem when I was running the recon.launch. This may be caused by line 1637 in map_ros.cpp.
if (map_->md_->occupancy_buffer_[map_->toAddress(x, y, z)] > map_->mp_->min_occupancy_log_)
Could you please help me to solve that?