Turn the heat to LOW. With a spatula, make sure you scrape the soap residue from the walls of the slow cooker, and mix the soap batter a bit. Otherwise you will have crusted soap bits in your soap bars.
Cover the slow cooker and let the soap batter cook for 30 mins. It's important to not take the lid off for this time, or it will release moisture. The soap needs all the water to remain fluid enough.
The soap will look like it's going to separate. You will see what it looks like oils floating around. Don't worry, this is normal. Don't do anything.
After some minutes, the soap will start to puff up in the edges. With time it will also change its texture, looking more vaseline-like: translucid and a little bit darker.
After 30 minutes, check if the center of the soap is opaque or more vaseline-like. This is going to be hard to see in this soap, as it's orange and will look very uniform.
What did I do? I've waited for more 15 minutes, then I've opened the lid and mixed well with a spatula. I could see that the soap batter had a sort of translucid texture. That's the vaseline look you need for your soap.