Errors/Chain errors
TransactorAccountShouldBeHotKey
Sign with the key or origin that owns the target object, then retry
The extrinsic must be signed by the hotkey itself, but a different account (typically the coldkey) was the origin. Check which key signs the transaction; calls like axon serving expect the hotkey as origin.
Declared by the SubtensorModule pallet; it classifies to the semantic code not_authorized.
Remediation
Sign with the key or origin that owns the target object, then retry
The same explanation is available in the terminal: btcli explain TransactorAccountShouldBeHotKey.