[Plugin: post-views] need fix 'orderby' => rand, with get_users Functions

Hello i found Big bug with views count when i put this function in the Single.php get_users

it showing me random count of views please Help !

this’s my code helps to show related posts from author
the problem with

‘orderby’ => rand,

how can i fix it ?

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http://wordpress.org/extend/plugins/post-views/