Cubik Studio

I make 1 model but I'm not export

http://i.hizliresim.com/r6k2Qz.jpg

I fix to element 14 but writing again

Minecraft only supports -45, -22.5, 22.5 and 45 for rotations.

Edit > Model Properties > Make sure "Restrict rotations (required for Minecraft block/item model)" is ticked.

Everyone really should read the wiki about models: https://minecraft.gamepedia.com/Model

If you tick the checkbox in model properties, Cubik will then force elements with free rotation to the nearest valid angle so you can export the model.