on charge clock not moving also red charge light not coming flash

Hi.

I have a new Top Tech 3 in1 12Ah Booster Jump Pack with Tyre inflator.

It was working and battery nearly full.

I used the light awhile and tried put back to on charge and worked. I was tried change the cable different way but a little light came on when I plug the charge cable on jumper connection and red light didn’t come on and looks like not charge anymore.

I think something fail when I plug in 2nd time.

Battery screen working and show nearly half battery but on charge clock not moving also red charge light not coming flash.

What do you think broken please?