EpochTriggerAlreadyPending

The object or state already exists; treat the goal as met or pick a different target

trigger_epoch was called while a previously triggered epoch is still queued for this subnet. Check the PendingEpochAt storage for the netuid and wait for the pending epoch to fire before triggering again.

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 EpochTriggerAlreadyPending.