Ouday

hi . recently we had a major electricty and since then , the printer, wich is ultimaker 3, is shown offline in the digital factory , i did the digital factory step several times , and i used the 6 digits coed more than i can remeber and, nothing still shown offline, i tried to deconnect it from the digital factory via laptop , and tried to reconnect it , connection worked but still offline ? is there anything i can do ? can you please help me ?