Due to organizational and financial issues with the Prague World Cup organizers, the Czech federation has announced the need to cancel this event.

A week ago, registration for this competition was suspended and member federations were informed of a possible cancellation and warned not to make further preparations for this event.
Later the IFSC officers made the decision to cancel official.
Source: IFSC

Older news about the suspention of the event: Registration for the World Cup in Prague suspended