[Language]
Spanish

[Version number]
58 (stable)

[OS details]
Chrome OS

[Where is the poor translation?]
English string: "{Extension name} (extension ID "{Extension ID}") is blocked by the administrator."

Poor translation: "El administrador de la extensión {Extension name} (con ID "{Extension ID}") ha bloqueado la extensión."

Proposed translation: "La extensión {Extension name} (con ID "{Extension ID}") ha sido bloqueada por el administrador."

[attach any screenshots below]

I have personally not been able to see this incorrect translation but have seen it in the following Spanish Chrome Forum thread: https://productforums.google.com/d/msg/chrome-es/wP4c5-7jCqM/98rJZCL7BwAJ. In there you can see a screenshot which shows the poor translation.