To begin, there is no need to feel as if there is no hope since the solidified epoxy won't be harmed in any way! Even if your resin and activator are both prone to freezing, returning them to a liquid state where they may be utilized is not tricky.
In fact, it is one of the most straightforward steps in the process. At first, you should just bring your epoxy inside and let it gradually warm to room temperature as it slowly gets closer to your desired temperature.