Aisler.net does not accept custom shaped board

It said that in the instructions...

You need the layer: "board" with the object "boardoutline". this needs to be a single object.
Layer: "silkscreen" is the top of the board and the Layer: "silkscreen0" is the bottom, Silkscreens can have as many objects as you would like.

<g id="board">
    <path id="boardoutline"/>
</g>
<g id="silkscreen">
</g>
<g id="silkscreen0">
</g>