If therefore Demetrius, and the craftsmen that are with him, have a matter against any man, the courts are open, and there are proconsuls: let them accuse one another.

So if Demetrius and his fellow craftsmen have a complaint against anyone, the courts are open and proconsuls are available. Let them bring charges against one another there.

if indeed, therefore, Demetrius and the artificers with him with any one have a matter, court days are held, and there are proconsuls; let them accuse one another.

If therefore Demetrius and the artisans who [are] with him have a matter against any one, the courts are being held, and there are proconsuls: let them accuse one another.