wp_editor is not rendering shortcode

You need to run it through do_shortcode(). do_shortcode() ‘runs’ any shortcodes in text passed to it:

echo do_shortcode( html_entity_decode( stripslashes( $val['content'] ) ) );

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