Can someone tell me why my balance just says .lumens?
I have the same.
Update: Found the answer on a redit page: https://www.reddit.com/r/Stellar/comments/f47o07/ledger_nano_and_account_viewer_doesnt_show_balance/ The latest ledger update is to blame, they are working on it. Check your balance on the Stellar blockchain explorer : https://stellar.expert/explorer/public/
using your public key in the search at the top right.