Errors and small problem

Hi, ive been getting this error

Warning: array_unique(): The argument should be an array in /home/mhdduipv/public_html/components/com_clan_members/clan_members.html.php on line 69
reQuiem
( / Registered since: 30.01.2007 )

Warning: Invalid argument supplied for foreach() in /home/mhdduipv/public_html/components/com_clan_members/clan_members.html.php on line 80

And im unsure what it is or what to do to fix it :S

Can anyone help me its with the mambot members.php and clanmembers.php

also on my site the recent site news stacks but how it stacks looks weird one on top 2 at bottom next to eachother i was wondering if anyone could look at it to see what i am on about and give me an indication on our to make them stack on top of each other so that you have to scroll to view them all?

**EDIT**

forgot site lawl.

http://www.solarise-gaming.co.uk

thanks in advanced im using latest joomla version too