@SeaMaiden, The "entity" is the data stream sent to the Q site by your browser. It's not a website issue and usually the problem is one or more corrupt cookies on your device.
The fix is to delete all browser cookies/cache, quit the browser and then relaunch it. If that doesn't work you might need to delete Flash cookies (LSOs), associated with Adobe Flash, from your device. (Also, in general, be sure to keep the browser software up-to-date and have a 2nd browser available if you find the one you're using is glitchy with the Q site.)
Few things reveal your intellect and your generosity of spirit—the parallel powers of your heart and mind—better than how you give feedback.~Maria Popova