issues with title template attribute

[th3goose]

I seem to be having an issue with the title tag bombing out on newsblog. I'm adapting a template and as soon as I add this tag below I get the error title() takes no arguments (1 given)...anyone have any ideas?

{% render_model article "title" %}

Paste of the traceback
http://dpaste.com/1NSSB7S

[th3goose]

Here is my requirements file too..

http://dpaste.com/12N2DCD

[bplociennik]

Your traceback expired. Could you paste it directly? Please, let me know.