gone wrong, gone awry
Entschuldigung, etwas ist schiefgegangen.
Sorry, something went wrong.
Wir wissen nicht, was schiefgegangen ist.
We don't know what went wrong.
Das war gründlich schiefgegangen, aber jemand hatte es versucht.
It had gone terribly wrong, but someone had tried.
Tom fand heraus, was schiefgegangen war.
Tom figured out what had gone wrong.