For several days now I have not been able to log into my wallet using the ledger. what should I do?
Please try to login to wallet.callisto.network with ETH network then choose your CLO network, if it doesnt work do the same but with ETC network.
Once you choose your address on the left right corner to switch the network to Callisto one, you will get access to all your funds and will be available to make the transactions.
If that doesn't solve the issue please try to follow these guide :
https://forum.callisto.network/t/ledger-updates-problem/521/2