--- copy_error.php	2011-12-23 09:22:15.000000000 +0200
+++ error.php	2012-04-05 02:08:49.000000000 +0300
@@ -528,6 +528,7 @@
 $string['wwwrootmismatch'] = 'Incorrect access detected, this server may be accessed only through "{$a}" address, sorry.<br />Please notify server administrator.';
 $string['wwwrootslash'] = 'Detected incorrect $CFG->wwwroot in config.php, it must not contain trailing slash.<br />Please notify server administrator.';
 $string['xmldberror'] = 'XMLDB error!';
+$string['zipfileserror'] = 'Cannot create zip file';
 $string['alreadyloggedin'] = 'You are already logged in as {$a}, you need to log out before logging in as different user.';
 $string['youcannotdeletecategory'] = 'You cannot delete category \'{$a}\' because you can neither delete the contents, nor move them elsewhere.';
 $string['protected_cc_not_supported'] = 'Protected cartridges not supported.';