What's up with this?

I logged on to answer my first question of the day and got this:

Sorry, you've reached your daily answering limit. Unfortunately you can only answer questions per day.

(they didn't even complete the sentence LOL0 how many? Doesn't say)

Debbie2014-07-17T10:20:14Z

I got that too, just yesterday in fact. It's probably just another glitch. I refreshed the page and answered the question with no problems.