Yes, I think Christophe is right, the IFCType is usually set to "ItcBuildingElementProxy" when the element has an "Unclassified" Classification" assigned to it.
You should try one of two things:
1. Remove that second Classification you do not use. Go to the Classification Manager Dialog, and delete it there.
2. Set the Classification of the Door in the second Classification to "Door" as well. That should change the IFC Type to "Door".
Handle the Slab similarly.
If you do not need both Classifications, then I would recommend option 1.
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