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.

Anastasia Pavlyuchenkova suggested her British opponent may have received preferential treatment as simmering tensions around Wimbledon ’s use of electronic line calling (ELC) instead of line judges boiled over Sunday,

Wimbledon has altered its technology after an “operator error” caused a malfunction of its Electronic Line Calling system at the Championships. The ELC system, which is powered by more than 450 cameras across the 18 courts in use,

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's automated line-calling technology came under fire on Sunday after an embarrassing malfunction robbed Anastasia Pavlyuchenkova of a point during her last-16 victory over Britain's Sonay Kartal on Centre Court.