Neiman Marcus is living every retailer’s worst nightmare.

On the busiest shopping day of the year, Black Friday, the luxury retailer’s e-commerce site has suffered an outage that CNBC reports has been going on since about 8 a.m. Eastern time. As of shortly after noon, the site was still not accessible.

A spokesperson for Neiman told Fortune the company is “working fervently to get it back up.”

Like other luxury retailers, Neiman doesn’t do the full-on Thanksgiving/Black Friday overnight insanity, preferring to open stores on Friday morning. But it’s still a big shopping day, even for people not looking for a TV. Neiman’s site had been offering deals up to 60% on Black Friday.

Screen Shot 2015-11-27 at 12.04.30 PM

And in the case of Neiman, an e-commerce outage is particularly bad news: the department store chain gets about 25% of revenue online, making it one of the most e-commerce reliant brick-and-mortar stores.

The outage comes two years after a data breach hit Neiman in time for the holiday season in which hackers stole credit card information from as many as 350,000 customers.

Last Black Friday, it was Best Buy BBY that was the unlucky one, suffering a one-hour outage at peak shopping times because of a surge in mobile traffic.