If you have trouble accessing the Quire on your web browswer, you can try clearing the browser’s cache.
At the top right, click on the More options icon and hover to More tools. Click on Clear browsing data.
Make sure Cached images and file is checked, and click on the Clear data button.
Lastly, hit Ctrl + Shift + R (or ⌘ + Shift +R for Mac) to refresh your Quire page.