Sorry, didnt notice I missed the first line of error.
I do have bad reputation on Gorn, also had at the time 1 pregnancy. I'll try fixing my reputation like you suggested and see if it fixes it.
On the other hand, I revisited the area to see if I can get the first line of error (have advanced in my save, the earlier slave that was pregnant gave birth and the kid its maturing, and have another pregnancy), and now I can travel more time in the cave, however I do still get the errors after a while with more error lines than before, here they are.
Edit: Increasing Gorn reputation to neutral did indeed fix the problem, thanks!