"The color of this desk is black."
Translation:Meja ini warnanya hitam.
The color of this desk is black. =
Warna meja ini hitam.
Meja ini warnanya hitam. =
This desk is black
Both sentences have more or less the meaning.
They have a different word order / sentence structure.
Warna meja ini hitam = not accepted, I think it should be accepted and reported it.