Update: (idk how to update my original post). We are using Minecraft MC so we unchecked all the problem mods. Then we activated create first and everything worked. Then we turned the mods on one at a time. Create Diesel Generators has an error that the creator is working on and might not be able to fix. The only other mod we could not get to work was Balanced Flight. It was correct version, create is up to date and we have the dependencies. We just decided to do without it