Fault in Link to Calendar in SMF 1.07

[sonic]

When in a thread and you click on link it to the calendar, the dates only go up to the 30th in all the months. That is in the Classic YaBB SE theme.

[xenovanis]

Version of SMF? Link to your forum?

[sonic]

I am running 1.07. I have changed back to the default template and that is ok, it just seems to be in the YaBB SE template.

http://www.hisaronu.co.uk/forum