u/CanTime3307

Every print has worked fine until this one project. When I try to print it, there’s no preview image, and the bed and nozzle don’t heat up, so the print never starts. I tested another file and it printed fine, so the printer itself seems okay. I checked my settings and nothing looks off. At one point the bed heated but the nozzle didn’t, but now it’s back to neither heating. I’m pretty stumped—any ideas?

Also, I know it has non manifold edges error, but I have completed several prints with this error and no major issue. I have no idea if that's the culprit or not.