Error: Check convexity

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Hi,

Can someone suggest me how could I fix these following error in open-studio?

When I checked Sketch-up using tool (show errors & warning), there is no errors & warnings. When I wanted to run this model by applying baseline It has obtained with following errors.

ERROR The run failed with the following severe or fatal errors: CheckConvexity: Surface="SURFACE 357" is non-planar.  Coincident Vertices will be removed as possible.   (  38.814,  24.420,   2.025)   (  38.814,  24.420,   0.000)   (  38.814,  24.420,   0.000)
CheckConvexity: Surface="SURFACE 372" is non-planar.  Coincident Vertices will be removed as possible.   (  21.394,  24.420,   2.025)   (  21.394,  24.420,   0.000)   (  21.394,  24.420,   0.000)
CheckConvexity: Surface="SURFACE 402" is non-planar.  Coincident Vertices will be removed as possible.   (  38.814,  24.420,   2.025)   (  38.814,  24.420,   0.000)   (  38.814,  24.420,   0.000)
RoofCeiling:Detailed="SURFACE 946", Vertex size mismatch between base surface :SURFACE 946 and outside boundary surface: SURFACE 482  The vertex sizes are 14 for base surface and 10 for outside boundary surface. Please check inputs.
RoofCeiling:Detailed="SURFACE 1054", Vertex size mismatch between base surface :SURFACE 1054 and outside boundary surface: SURFACE 6024  The vertex sizes are 26 for base surface and 27 for outside boundary surface.

Thanks