LightMap Help

Hi there,

So when I bake my lighting I get this issue


http://postimg.org/image/knon2g279/

I assume its a lightmap issue? I am unsure on what to do! I seem to lose all shadows an gain these black spots?

Thanks guys!

found a work around for this bug, under General GI, Change Directional mode to Non- Directional or using Directional spectacular .