Why cant I find a replacement cable?

where can i get a new charging cable for my EGQ375BL tablet?

its the tablet that comes with the soft case and headphones.. and ive looked all over for a new charger but i only found a Ematic EMU62 and that didnt work… so where can i get a replacement charger cable for my Ematic 7” Quad-core tablet with android 7.1 (nougat)?