Looks like the 30W and 50W Hana clones are going for between $40 and $55. Maybe someone can repair it, but get ready for a service charge equal to a new mod.
I have a Smok Koopor Plus 200W that did the same thing with the 510. The center contact pin came loose and I pulled it apart to see what happened. The center contact slipped off a shaft/spring combo that allowed it to adjust to the atomizer pin.
I was able to press the pin back in place on the shaft, but the same problem remained. That leaves the circuit board. It's now been officially declared a boat anchor, but it's only heavy enough for an R/C model.
I bought an iStick Pico 40w to replace it. I don't vape high watts anyway. I bought the Koopor for dual battery life.