catlist excerpt broken

A simple category list has stopped working

[catlist name=”faculty” thumbnail=”yes” excerpt=”yes” excerpt_size=”150″ excerpt_strip=no numberposts=”12″]

Looking at source in the browser, the page just ends at the start of the catlist

<header class=”entry-header”>
<h1 class=”entry-title”>Faculty</h1>
</header><!– .entry-header –>
<div class=”entry-content”>

Removing excerpt=”yes” restores the listing, but without excerpt text

[catlist name=”faculty” thumbnail=”yes” excerpt_size=”150″ excerpt_strip=no numberposts=”12″]

http://wordpress.org/extend/plugins/list-category-posts/