Aukey PB-Y7 30000 mАh broke

Aukey PB-Y7 30000 mАh

used 10 times. a year later broke. Where to buy a charging controller? blinks white and does not charge.

help please

bought From AUKEY offical Store aliexpress

I wonder would the blinking white just be that it is very discharged.
Try and plug it in to charge from a usb port on a computer and leave it overnight, hopefully then it the morning it will have soft charged enough to start taking a charge from a regular more powerful charger

Where to buy a charging controller?