ludesh3231

Hello everybody i'm new here and i'm in need of help. I seem to have lost my green card and i'm purchasing a brand new house which will be done next month and the lender are asking for my green card. I don't know what to do right now. i told the lender that i lost it and they said they need it. Do i need to file a i-90 form? or should i go talk to a immigration officer? i need the card right away. otherwise i would be denied for my loan since i have no proof. I know my alien # by heart. what should i do? Help!