Implementing Asides

I am using the blix template and I am trying to implement asides. I followed the directions and the asides are working, then two posts show up, then I get the following errors. I was wondering why… any ideas?

Warning: Invalid argument supplied for foreach() in /home/somegre/public_html/wp-includes/template-functions-category.php on line 393

Warning: in_array(): Wrong datatype for second argument in /home/somegre/public_html/wp-includes/template-functions-category.php on line 397