The William Hill and Caesars Sportsbook mobile sports betting apps were back in working order Wednesday night after crashing during the Super Bowl.

Thousands of William Hill sportsbook bettors have been unable to claim their prize.

In a statement shared on Twitter, the company said that “towards the end of the second quarter of Super Bowl LVII, our William Hill Nevada sports betting platform experienced an unforeseen technical issue that took our Caesars Sportsbook by William Hill and William Hill Nevada apps and our retail sportsbooks offline.”

On Tuesday, the company said that while its retail sportsbooks are “currently back up and operating,” the issue impacting William Hill’s phone apps is yet to be resolved.

The Nevada Gaming Control Board on Monday said in a statement that it was aware of the issue and staff were investigating.