joint_states issue in CR_ROS package

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Hello everyone, has anyone ever used or is currently using CR_ROS? It's a package for controlling the Dobot CR series.

I'm using it to connect to a Dobot CR5 and the problem is joint_states using Publish to move_group is always 0. I checked in the C++ API file for bringup named main.cpp but no problem.

This issue makes current_state mine have a problem.

I actually tried to ask on the package web page but the developers have been offline for a long time until now.

If anyone has found and solved this problem please guide me.