My Baicells Nova 227 doesn't turning on

Hi community!
I have some trouble with Baicells nova 227 same as yours on the previous video. For the first time turn on the baicells Nova i connect it to the PoE adaptor and router after that i can access the management utility successful but after i downloaded the backup files from the eNB shortly after that the Baicells nova suddenly shutdown. I tried to turn it on again but nothing happened the LEDs not blinking the enb doesnt turn on and i can’t access the management utility anymore, i tried to turn on a few Times but still the same. I need your help mate.
In this case i want to integrate with open5gs.
thank you