Whats happening here??

[peterdhaens]

Hello
I'm looking now for days and I can't find my mistake
What is the surface on the left that is floating above my ceiling??

[Patricia G.]

Hi there,

Please, inform the name and version number of your program.

Also, do you mean the framing area? slab? Can you point the issue in the image?

[peterdhaens]

Hello
I'm using    
FloorPlan Home & Landscape Pro 2019 Mac

i mean this thing i do think it the floor

[Patricia G.]

Hi there,

Yes, it is a floor indeed.
It looks like a manual floor with the wrong elevation. Try to locate this floor / ceiling in the floor plan and adjust the elevation.

Hope this helps.