Serious problem with Yafray

I am making a fluid simulation, and tried using Yafray to render it. The problem was, none of my materials were on it (Everything was grey), and it was quite dark too.

How can I fix this?

You may need to assign material settings in the yafaray script settings.
http://www.yafaray.org/documentation/userguide

Richard

Okay, and what do I do about it being really dark? I tried turning all the lights energy to 10.

light energy is adjusted in the export script, under the object settings

Forum search is your friend:
http://blenderartists.org/forum/showpost.php?p=1488605&postcount=4

YafaRay has a really remarkable documentation - even more by open source software standards. How about taking a look into that?