Malfunction
Out Of Order
noun, する verb
The circumstance is that the thing you're using is a hinderance. Usually it's a help, but now it's out of order and has a malfunction.
こしょう
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
あのファックス機は故障中だよ。
That fax machine is out of order.