 The errors resulted in regulators having to post corrected financial data for several months, something that has not happened in 13 years. The inaccurate data caused Resorts Digital, the online arm of Resorts Casino, to file incorrect sports betting tax returns for December of 2023 and January and February of 2024. The mistakes involved overstating the amount of money wagered on multi-tiered bets or parlays and understating other categories of wagers. DraftKings on Monday said it has fixed the problem.