Php update killed my wiki site.

["John W. Foster" <jfoster81747@gmail.com>]

For a couple of years I have used this type of link to bring content
into my mediawiki:

{{Offsite Disclaimer}}
{{wikipedia::Inductive reasoning}}

And it has always worked well.

I recently upgraded my Debian Linux Php to:
PHP Version 5.3.3-7+squeeze9

Since then This link does not work, nor do any of the others that are
formatted to this style.

The exact error message issues by the browser is:

[Template fetch failed for
http://en.wikipedia.org/wiki/Inductive_reasoning?action=render]

Any Tips please!!
Thanks 
frosty