A small Nebraska bar is struggling to stay in business after its keno machine went rogue and customers took advantage.

Smartville Station, a local watering hole in the unincorporated community of St. Mary in Johnson Country, is having trouble making ends meet after its lone keno machine experienced a major malfunction last Halloween.

According to the Lincoln Journal Star, it was a truly spooky Halloween night when some of Smartville Station’s regulars noted that the machine had stopped generating numbers in a random fashion and was instead repeating the same pattern over and over again.

Bar owner Susan Goracke thought it was freak luck when seven of her customers claimed winning tickets each worth $500 or less that night. But Goracke started smelling a rat the following day, when her first customer of the day claimed a $6k ticket and another customer claimed a $3k winner shortly thereafter.