Errors/Chain errors
NotEnoughStakeToSetChildkeys
Fund the signing account or reduce the amount; check with `btcli wallet balance`
Raised by set_children when the parent hotkey's total stake is below StakeThreshold and it is not the subnet owner hotkey. Compare the hotkey's total stake (btcli stake list) against the StakeThreshold storage value.
Declared by the SubtensorModule pallet; it classifies to the semantic code insufficient_balance.
Remediation
Fund the signing account or reduce the amount; check with btcli wallet balance
The same explanation is available in the terminal: btcli explain NotEnoughStakeToSetChildkeys.