Carnival Cruise Line is cleaning up after a technical error briefly allowed travelers to book cruises at heavily discounted prices before the reservations were ultimately canceled. According to The New York Post , the issue reportedly occurred after scheduled IT maintenance, when some guests were suddenly shown cruise fares far below standard pricing. Among the affected bookings were balcony cabins on multi-day sailings that appeared online for around $300, triggering a rush of reservations before the error was corrected. According to communications sent to impacted customers, Carnival Cruise Line later voided the bookings and issued refunds, explaining that the fares displayed during the system issue were not valid promotional rates. The company also offered guests a $100 onboard credit toward a future cruise if they chose to rebook by Aug. 31, 2026.…