Problems with "APM: PreArm: EKF attitude is bad" in Erle-Copter RL Example

Hey there!

I have some troubles with an example from Erle Robotics (its deprecated but i still hope to get it running) for the gazebo-gym (q-learning for hovering).

I posted a topic earlier but it seems i have fixed this issue (Link!) and run into the next one.

Im my Terminal is no error but the simulation doesn’t start. Meanwhile it seems that ArduCopter is trying to Arm or something and has some issues with it. I put in a Screenshot, Link.

I’m not very experienced with Ardupilot and only tested a few Tutorials from this website (which worked fine), i have no idea where is should look for a problem.

Thanks in advance!