Add missing translation.

plugin/bbb/lang/english.php

@@ -78,3 +78,5 @@ $strings['UpdateAllCourses'] = 'Update all courses';
 $strings['UpdateAllCourseSettings'] = 'Update all course settings';
 $strings['ThisWillUpdateAllSettingsInAllCourses'] = 'This will update at once all your course settings.';
 $strings['ThereIsNoVideoConferenceActive'] = 'There is no videoconference currently active';
+$strings['RoomClosed'] = 'Room closed';
+$strings['RoomClosedComment'] = ' ';

plugin/bbb/listing.php

@@ -140,7 +140,7 @@ if ($conferenceManager) {
                         $result = $bbb->regenerateRecording($result['id']);
                         if ($result) {
                             Display::addFlash(Display::return_message(get_lang('Success')));
-                        } else {
+                        } else {	
                             Display::addFlash(Display::return_message(get_lang('Error'), 'error'));
                         }
                     }