Update page.js

src/server/routes/page.js

@@ -451,7 +451,7 @@ module.exports = function(crowi, app) {
     const shareLink = await ShareLink.findOne({ _id: linkId }).populate('relatedPage');
 
     if (shareLink.relatedPage == null || shareLink == null) {
-      // page is not found
+      // page or sharelink are not found
       return res.render(`layout-${layoutName}/not_found_shared_page`);
     }