Basic car configurator not working

I am following Daryl Obert’s demo of the car variant manager and simple UI blueprint but it does not seem to work. I literally did it 6 times step by step how he did it and I keep getting an error. Has anyone done it the same way and if yes, did you get the same errors. Any help would be very much appreciated. If anyone would like to contact me directly please send an email to Thank you!!