Category List with Subcategory

Hello all,

I am currently having difficulties to get this to work how I intended, I need a achieve list in order a-z that has the subcategories of my category places ( ID = 42 ). Below is an example of how I want it to work, the page itself will be places but I need as shown Paris, China then Shanghai and France.

-Place
-Paris
-France
-China
-Shanghai

I’ve tried using this code.

https://pastebin.com/mKS4uqds

I receive an error that just reads as:

Warning: printf() [function.printf]: Too few arguments in /home/content/a/d/a/adamsin/html/wordpress/wp-content/themes/lala/category-places.php on line 33

Line 33 is:
printf( $this_category );

Any help would be really appreciated !

UPDATE: I’ve been able to use it with certain categories but when I try it with places, which is pretty extensive of the depth it says No Categories found.