Way to fix shadows not casting after importing unity store prefab?

Basically, I create a new project and throw in a floor, cube and directional light with Shadow Type set to Hard Shadows. This works fine and I get this result.

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I then go to the unity asset store and download a fps pack that I brought quite a while ago.

When it has downloaded, Objects no longer cast shadows.

Im left with this:

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I really dont know what is happening, and ive spent quite a while trying to fix this.
Anyone know what might be happening to cause this problem/bug?

Thanks in advance ^^

******** Edit ********


The Directional light:


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The Cube:


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Thanks to @CyberMew I found out what was causing this.
For anyone else having this problem, Go to

Edit > Project Settings > Quality

And change Shadows > Disable Shadows to Hard and Soft Shadows

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I just ran into this issue myself.
After bringing all my content to 1.0 from the default .01 I found I could no longer cast shadows.
I found it was all about the “Shadow Distance” parameter above. It just needed to be increased by a few multiples and all was well again.
Thanks for this post, it made me think this through to that.