Help contact.stickImpulse always 0, Closed loop ObiRope Collision fails

[alicecatalano]

Hi, i am still trying to fix the upcited error. i will attach here a .zip containint a video of what is happening. Please help me understand what is going on. the errors you see in the console pane are related to a CollisionHanling code that i wanted to use to increase the number of particles in the collision area but that i am not using now