Bad title given to Image() constructor: 
<p>Backtrace:</p>
<ul>
<li>Image.php line 54 calls wfDebugDieBacktrace()</li>
<li>Image.php line 170 calls Image::Image()</li>
<li>SpecialNewimages.php line 87 calls Image::newFromTitle()</li>
<li>SpecialPage.php line 309 calls wfSpecialNewimages()</li>
<li>SpecialPage.php line 220 calls SpecialPage::execute()</li>
<li>index.php line 108 calls SpecialPage::executePath()</li>