Re: No debits from the ledger possible. Who can help?

The inputs are now greatly reduced, but ledger has saved all transactions and the list has not gotten any smaller.
Is it because of that?

Do you mean "Ledger Live"?
Clearing the cache should also clear the spent coins after it resynchronize.

Here's how to: https://support.ledger.com/hc/en-us/articles/4404381846929-Clear-cache-in-Ledger-Live?support=true