Latest questions about "csi etabs"

When I checked my model, there was no warning message, but when it starts the analysis there were a lot of warning such as WARNING THE SOLUTION LOST 7.

Good morning, I would ask you if it's possible to realize the vertical tendons into the concrete walls on ETABS. Also how? Or are there other ways to realize this kind of patterns?

I have the records of acceleration in some points of a foundation of a building. To design it I need to put a slab (with a rigid diaphragm) with area springs (for the soil-structure interaction).