Shortcode help: If no image entered take default

add a conditional statement before the line with ‘return’, for example:

if( $imgURL == 'paste Img Url' ) $imgURL = get_stylesheet_directory_uri().'/images/default.jpg';

http://codex.wordpress.org/Function_Reference/get_stylesheet_directory_uri

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)