ContributionPeriodEnded

A contribution was made at or after the crowdloan's end block. Compare the end field of the Crowdloans entry with the current block number; the creator can extend it with update_end while the crowdloan is not finalized.

Declared by the Crowdloan pallet; it classifies to the semantic code expired.

Remediation

The window has closed; restart the flow with fresh state

The same explanation is available in the terminal: btcli explain ContributionPeriodEnded.