Participles

[Hrino]

So, I'm on participles now.
And in a text book I have a sentence

Errata corrige.

I've found a translation on the internet, it was something like Repair your errors!, and I don't know how this corrige could be participle, because, errata is an error, a mistake, a noun.
So?
How is corrige a participle? How would I get to this form if a verb is corrigo, corrigere, correxi, correctum

it would be more logical if the translation was corrigible error, but, the translation doesn't matter now, i'm wondering, how can I get to this form of a verb?

 

[cinefactus]

corrige is the imperative form, it is not a participle.

 

[QMF]

There are two translations for this, I would say:
"One who has erred (female), correct <something>!"
and
"Correct (your) mistakes"

The participle is errata, which is feminine vocative singular in the former and neuter accusative plural in the latter. Corrige is, as Cinefactus said, imperative.