Black screen after success build.

Today I build many times my proyect, exporting both to webplayer and to .exe and It worked perfectly.

Now, after adding some animations and particle systems, everytime I build my project no matter what platform, I just get a black screen.

Also tryed to enable Developer mode to my .exe but nothing changed.
What could be the reason of this happening?

Oh yes, and changing the Time Scale to 1 doesn’t work because it’s already on 1.

Any help please? I have a deadline and I seriously don’t know where else to look!
Thanks!

Edit: The only additional info I was able to get, is the log from the .exe

Direct3D:
    Version:  Direct3D 9.0c [aticfx32.dll 8.17.10.1091]
    Renderer: ATI Radeon HD 4800 Series        
    Vendor:   ATI
    VRAM:     504 MB (via DXGI)
    Caps:     Shader=30 DepthRT=1 NativeDepth=1 NativeShadow=1 DF16=1 DF24=1 INTZ=1 RAWZ=0 NULL=1 RESZ=1 SlowINTZ=1
desktop: 1920x1080 59Hz; virtual: 1920x1080 at 0,0
<I> Initializing (RawInput).

<RI> Input initialized.

Non platform assembly: data-0355CDA8 (this message is harmless)
Non platform assembly: data-08710048 (this message is harmless)
Non platform assembly: data-08729250 (this message is harmless)
Non platform assembly: data-08737F88 (this message is harmless)
Platform assembly: C:\Users\Pitu\Desktop\Test_Data\Managed\UnityScript.Lang.dll (this message is harmless)
Platform assembly: C:\Users\Pitu\Desktop\Test_Data\Managed\Boo.Lang.dll (this message is harmless)

Yeah, the problem was that for some reason I forgot to uncheck “Editor only” on my Character container tag. That way it was not aprearing on the build, only when hitting play.

Thanks!