Help me!!! I'm a Korean Moi beginner. This question is about export 3ds or obj.

 From:  Songkun (KICHIZO)
1130.1 
Hello. I'm a Korean. So I can't writing English well. ^^; Sorry about that.

Ohm..

A few hours ago, I did download Moi.

And I made a simpe modeling by Moi.

After completed, I tried to export 3ds file and obj.

But I couldn't export files.

How to do prepare my model for export to 3ds or obj??

Please help me.....ㅠ_ㅠ