Index: kernel/setup/extensions.php
===================================================================
--- kernel/setup/extensions.php	(revision 23518)
+++ kernel/setup/extensions.php	(working copy)
@@ -76,6 +76,7 @@
 
 // open site.ini for reading
 $siteINI = eZINI::instance();
+$siteINI->load();
 $selectedExtensionArray       = $siteINI->variable( 'ExtensionSettings', "ActiveExtensions" );
 $selectedAccessExtensionArray = $siteINI->variable( 'ExtensionSettings', "ActiveAccessExtensions" );
 $selectedExtensions           = array_merge( $selectedExtensionArray, $selectedAccessExtensionArray );