The All England Club is blaming human error for a glaring mistake by the electronic system that replaced human line judges this year at Wimbledon.

Wimbledon organisers apologise after the electronic line-calling system on Centre Court is turned off in error and misses three calls in one game.

Eye’s electronic line-calling system (ELC) at Wimbledon this year, and the All England Club getting asked a lot more questions just “in or out”. Chaos reigned in the wake of a missed line call on Centre Court that left Anastasia Pavlyuchenkova assuming foul play in her clash with Britain’s Sonay Kartal.

Wimbledon organizers have apologized and explained that “human error” was the reason behind the electronic line-calling system being turned off during a match on Sunday.

Wimbledon has updated its electronic line-calling system after a human error caused the Hawk-Eye to fail during a fourth-round match. The All England Club has now issued a statement saying that they have made a crucial change that will ensure that the mistake doesn’t happen again.