Hi Ms. Raines,
We normally don't have any restrictions on how many posts you can submit per day.
However, we had an issue with a spammer a few weeks ago and developer is telling me that he implemented that feature to control the spammer. Since the issue has been resolved now, we are going to remove that restriction, so you shouldn't have any issues posting on the site.
I will let you know when we make that update. Sorry, for the inconvenience!