Temporary 24 hours darkness, equipment issue.

2 weeks away from harvest and only 1 24 hour break in the light schedule is unlikely to cause any significant or adverse effect. That said, there are 2 potential outcomes: The shitty one - the plant runs a late stage hermie and you end up with lower potency, but likely still smokable and usable bud. The good one - nothing happens at all and she continues to bulk out until you're ready to chop. Either way, your solution is the same - get light back on em to the same schedule as they were previously. I believe they're autos so 18/6, 20/4 - whatever you were on before. Think you'll be alright regardless. Good luck to the finsh!