Hello,
When the lock is on, this simply the adapter saying to the plugin that it is not safe or possible to perform withdrawals at this time.
Looking at the is_unlocked() function, these are the conditions that would make the wallet appear locked:
1. If communication with the wallet is not possible
2. If the wallet is a view-only wallet
3. If the wallet highest block is larger that the network highest block
It’s likely that this third situation was the case. This is transient and should resolve as the wallet and network sync, which is probably what happened.
with regards