How to use my own real-time published map？

[cjt258]

I use a node that I set myself to publish/map topics in real-time (10 times a second), but this will result in an error, and I compared wish map_ Sever , map_ The server seems to have only been published once, while I only publish ten times per second. I don't know if this is the reason for the error. The error message is as follows:
/usr/include/boot/smart_ Ptr/shared_ Ptr. hpp: 734: typename boost:: detail:: sp_ Member_ Access:: type boost:: shared_ Ptr: operator ->() const [with T=nav_msgs:: OccupancyGrid_<std:: allocator>; typename boost:: detail: sp_member_access:: type=nav_msgs:: OccupancyGrid_<std:: allocator>*]: Assertion ` px= 0 'failed
If you could give me some advice, I would greatly appreciate it，thank you very much！