Can you put the code in between backticks(`)? Hopefully that’ll fix the forum’s formatting.
wp-types prefixes the ‘real’ names of the fields
http://wp-types.com/documentation/functions/: “Important note:
The field name is as it appears in Types GUI – not the actual name of the field in the database. This is the ‘simple’ name, without the <em>wpcf</em> prefix.”
So you’ll need to use [ml_field name=wpcffiyat] (or maybe [ml_field name=wpcf-fiyat]?) Check your database for how the fields are actually named.