"You have reached the day's sale limit" - Vendor Bug

[renjykk]

Before I open a ticket and deal with all that jazz I'm hoping I can glean some insight from you guys. I'm premium rank 6 and have had a premium membership since a week or so after I started playing the game. I've used the dragon express all the time everyday for months. So imagine my surprise when I log on today (May 8, 2016) to discover that I have apparently, "reached the day's sale limit" and that I should "please try again tomorrow". I'll have never seen this before and have sold hundreds of junk items on the dragon express. I'm willing to entertain that there maybe there has been a limit and I just never reached it, but even then, this was the first time today I tried to sell something. So it would have been reset along with everything else.                                             

       So I put it to you guys: Is this a bug? Or working as intended?

 

 

Edit: So apparently this is even worse than I thought, and is most certainly a bug because I'm getting this error from ALL VENDORS. This is only affecting one character.