Motor not working

When I send the cmd to ros topic /cmd_vel as follows:

rostopic pub /cmd_vel geometry_msgs/Twist
“linear:
x: 0.0
y: 0.0
z: 0.0
angular:
x: 0.0
y: 0.0
z: 0.1” -r 10

At beginning the robot rotates as I want, but after several weeks, the robot cannot rotate anymore, but just move backward.

In this case, is there any motor damage or gear box damage inside Panther? and how can I fix this?

That’s also the same problem we are facing

Hi guys.

Can you both send me a rosbags and videos in private messages? I will check on them and help you separately.

Best regards,
Krzysztof Wojciechowski.