Realtime Arm Servoing Error ROS

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I'm following this tutorial: https://ros-planning.github.io/moveit... but everytime I run roslaunch moveit_servo spacenav_cpp.launch I get the following error. [spacenav_node-1] process has died [pid 89331, exit code 1, cmd /opt/ros/noetic/lib/spacenav_node/spacenav_node __name:=spacenav_node __log:=/home/risc/.ros/log/102f3060-0330-11ec-9663-f9ce5997f2dd/spacenav_node-1.log]. log file: /home/risc/.ros/log/102f3060-0330-11ec-9663-f9ce5997f2dd/spacenav_node-1*.log

After I run

rostopic pub -r 100 -s /servo_server/delta_twist_cmds geometry_msgs/TwistStamped "header: auto twist: linear: x: 0.0 y: 0.01 z: -0.01 angular: x: 0.0 y: 0.0 z: 0.0"

but the robot does change positions. Any ideas?