Karamba solution exception:Could not find node

1. Solution exception:Could not find node at (5.5824806971198/5.58146115753525/5.97080420622471) where point-load number 0 is attached.

I have this error message in Assemble Model but that point is definitely one of the points of the structure.

If I disconnect that load, then it complains about another load at another node.

Pls see my model as attached.

PS.: There is another strange behaviour that once a Karamba container disconnected from its output then it became "empty".

Thank you