What is duxe ex machina?

A link to the plot is below.

latin for 'God in the machine'. In olden days when people wrote plays they sometimes got them so convoluted and complex the only way to resolve it was to have some God descend from heaven and...

The deus ex machina, or "god from a machine" is a hack literary trick where the problems of a plot are resolved at the end of the story by the sudden introduction of a new element.

Deus ex machina / Dea ex machina - literal "god / goddess out of a machine". An artificial, or improbable character, device, or event introduced suddenly in a work of fiction or drama to resolve a...

"Deus ex machina" means "God [is coming] out of the machine. It was said when at the end of plays, an unsuspected event occured to solve all the mysteries or previous problems. (see link)