Errors/Chain errors
HotKeyAlreadyDelegate
The object or state already exists; treat the goal as met or pick a different target
become_delegate was called for a hotkey that is already a delegate. Check the Delegates storage for the hotkey; if it has a take entry it is already delegating and no action is needed.
Declared by the SubtensorModule pallet; it classifies to the semantic code already_exists.
Remediation
The object or state already exists; treat the goal as met or pick a different target
The same explanation is available in the terminal: btcli explain HotKeyAlreadyDelegate.