Why my bbblue doesn't power on with 12v jack? Is there problem?

Why my bbblue doesn’t power on with 12v jack??
Is there problem?
I need help…
Help me please.

https://discourseuploadspace.sfo2.digitaloceanspaces.com/original/3X/b/a/ba9e06ebc2f4397f26793bb5cd4e169308dd371d.mp4