Got a Vorze A10 piston SA and it is not charging anymore

I have bought an A10 piston SA from ToyDemon and after using it for about a week, it no longer charging appropriately. After plugging in the usb-c, the on/off button flashes green, but even after charging for several hours, when the cable is removed and the on/off button is pressed, it glows green and shuts off automatically after rought 3 seconds. I have also tested the cable and plug by using another device to make sure that it is not a cable and/or plug issue.

Is this a common problem for the Vorze A10 piston S and how can I fix this?