terminate called after throwing an instance of 'std::invalid_argument'

[nvhungv2k]

I am trying panther on Ubuntu 18.04 and ros-melodic I've completed procedure to build and install panther and it's dependencies. I proceeds to run: roslaunch panther simulation.launch quad:=SQ01s And panther-node died immediately as following image: After that, I run panther-node in separated terminal: rosrun panther panther_node ~state:=state ~who_plans:=who_plans term_goal:=term_goal ~trajs_predicted:=tracker_predictor_node/trajs_predicted ~traj:=traj ~trajs_zhejiang:=trajs_zhejiang ~goal:=goal ~setpoint:=setpoint __name:=panther I thrown this error: "terminate called after throwing an instance of 'std::invalid_argument' what(): stoi Aborted (core dumped)"