Two layers for one element

In my file I have solar modules that I’ve drawn on the SO-MODL layer but when I turn off C-ROAD layer, the panels also disappear.
Could you help me figure out why and how can I fix it?
Thank you.

I see edges (basic entities) on layers other than Laye0.
Never draw on any other layer than Layer0. This should be the active layer at all times!
Only assign other layers to groups or components.

Layers in SketchUp are for controling visibility.

Thank you so much for yor help.