Fix prevent sending to users in api_is_excluded_user_type() in DropBox - Refs #8087

main/dropbox/dropbox_functions.inc.php

@@ -647,7 +647,7 @@ function display_add_form($dropbox_unid, $viewReceivedCategory, $viewSentCategor
             }
             $userId = $current_user['user_id'];
             $userInfo = api_get_user_info($userId);
-
+            if ($userInfo['status'] != 20) {
                 $groupNameListToString = '';
                 if (!empty($groups)) {
                     $groupNameList = array_column($groups, 'name');
@@ -660,6 +660,7 @@ function display_add_form($dropbox_unid, $viewReceivedCategory, $viewSentCategor
                 $options['user_' . $current_user_id] = $full_name;
             }
         }
+    }
 
     /*
     * Show groups
@@ -1045,7 +1046,7 @@ function store_add_dropbox()
     new Dropbox_SentWork(
         $_user['user_id'],
         $dropbox_title,
-        $_POST['description'],
+        isset($_POST['description']) ? $_POST['description'] : '',
         strip_tags($_POST['authors']),
         $dropbox_filename,
         $dropbox_filesize,