CMS Made Simple Forums

I have lots n lots of these (consecutive) error messages in admin log

ERROR DETECTED: Call to a member function Name() on a non-object at /vhosts/mydomain/www/modules/CMSPrinting/action.output.php:36

They all happened on one day, looks like someone tried to use printing on a page that doesn't quite work? any idea how I could find out which page/section causes the error?

Thanks

CMS Install Information
CMS Version 1.11.2


Installed Modules
CMSMailer 5.2.1
MenuManager 1.8.3
ModuleManager 1.5.5
News 2.12.8
Search 1.7.7
TinyMCE 2.9.11
CGSimpleSmarty 1.5.2
CGExtensions 1.30
CGBlog 1.9.8
CGFeedback 1.5.7
Captcha 0.4.5
FormBuilder 0.7.3
IE6Warning 1.03
Showtime 3.2
CMSPrinting 1.0.3
CGSmartImage 1.9.4


CMS Config Settings
php_memory_limit
process_whole_template
output_compression
max_upload_size 2000000
url_rewriting mod_rewrite
page_extension .html
query_var page
image_manipulation_prog GD
auto_alias_content true
locale
default_encoding utf-8
admin_encoding utf-8
set_names true
debug false
...
ssl_uploads_url /uploads
use_smarty_php_tags false

You have an url for us?

http://www.rpc.com.au/
use the little printer icon on the right. home page and most pages containing galleries print poorly but other pages i tried actually turn out ok.

EDIT: I forgot to mention PHP 5.2.17