功能失靈 的英文怎麼說?

[1] the function is not working[2] the game has a glitch[3] the program has a bug

某個硬體或軟體的功能失靈或壞掉可直接說 the function is not working，例如冷氣機的出風口壞掉就可說:

The air outlet of the air conditioner is not working.

遊戲的功能壞掉就可說 the game has a glitch/bug，軟體程式有問題可說 the program has a bug，非常簡單。