The concert is in risk of being cancelled last-minute. The government sued one of the companies that are producing the show because they found some things that didn't match up in their accounts. The company offered to pay some extra $$$ but the request was denied. The sanction by the government means that the company can't operate for six days (AKA it includes the day of the concert), so a group of government workers informed that the concert must be suspended.
The contracts for the show, however, were made through another company that belongs to the same group as the company that is being sued, so the situation is unclear and the government insists that it must be cancelled.