"You have reached the limit of horses entered at the same time"

I was entering my models into the Old Friends Benefit Show and halfway through, when i went to enter a few models, I got this error: "You have reached the limit of horses entered at the same time (250). This is most likely due to your account having more horses uploaded than your account type allows." I only have 217 models uploaded to my account, and in the show in question I only have 126 models entered. I have no idea what this means but it won't let me enter anymore horses into this show, it just shows me this error. I'm using Chrome.

This is related to normal and Premium accounts, which originally the idea was that normal accounts were allowed 250 concurrent entries across all shows. Later, we changed that to 250 uploaded horses. Apparently, the check for entries is still active and you are the first person to have found that in years. We will change this in the next update sometime over the following couple of days!

Holy crap that's wild! Thank you so much for your response!