I'm trying to access the Knowledge base, but when ever I click on a topic, i get this error:

Closing and re oping does nothing, it continues to be annoying, and will not let me see the topic

What I'm trying to accomplish: I want to slice up a solid (equal sized portions) made from a half ellipse. In my case this is a customers request for a "stone arc"  Yes, I know it's not an arc.