E994 Error Soil Nail Design

GeraldGuico

Hi, I'm working on a soil nail design. We used fully specified method, and I have encountered E994 error in a few of the slip surface's FOS. I am not entirely sure if I can change the slip surface. Anyone has an idea to fix this other than redrawing/tweaking the slip surface? I tried changing the drillhole dia, bond lengths, and horizontal spacing as well. Thanks!