error with connection between components

[sk0nerat0r]

I have 2 errors:
1st error between components, I tried to solve it, but nothing helped

2nd error: "traceback (most recent call last)"

I don't know what should i do to solve problems. Please help me

[Zotov93]

Most likely the problem is in Joint, you need to swap Component 1 with Component 2.

[Zotov93]

If this does not help, then the problem is related to the root body, you need to reassign all "Joint" first, according to the scheme: Component 1 - child, Component 2 - root.

[Jdhaworth]

I found this issue could also be caused by using rigid group instead of rigid joint upstream in the joint tree.