Serialized smile array while login_forum_box function executing

When i'm trying to create a pasworded forum, it show similar text
a:8:

{s:9:"smiley_id";s:2:"64";s:4:"code";s:3:":O:";s:7:"emotion";s:5:"Shout";s:10:"smiley_url";s:9:"shout.gif";s:12:"smiley_width";s:2:"20";s:13:"smiley_height";s:2:"20";s:12:"smiley_order";s:2:"51";s:18:"display_on_posting";s:1:"1";}

i:51;a:8:{s:9:"smiley_id";s:2:"65";s:4:"code";s:7:":shout:";s:7:"emotion";s:5:"Shout";s:10:"smiley_url";s:9:"shout.gif";s:12:"smiley_width";s:2:"20";s:13:"smiley_height";s:2:"20";s:12:"smiley_order";s:2:"52";s:18:"display_on_posting";s:1:"1";}}
As i know, this is serilized smiles array. If passwrod not exist, everything works fine.