> ## Documentation Index > Fetch the complete documentation index at: https://docs.droyd.ai/llms.txt > Use this file to discover all available pages before exploring further. # Evaluation troubleshooting > Diagnose agent contracts, credentials, queues, timeouts, artifacts, and cancellation. Check the latest evaluation before starting another one: ```bash theme={null} droyd eval status last --json droyd eval logs last --json droyd eval results last --json ``` Common causes are an invalid agent contract, a missing provider credential, an unsupported dataset role, an active evaluation for the same experiment, a timeout, or a run-time agent failure. Read the status and logs to distinguish these cases. Cancel only the evaluation you intend to stop: ```bash theme={null} droyd eval cancel --json ``` Some private datasets return redacted diagnostics by design. Use the result and allowed artifacts to create the next hypothesis instead of trying to retrieve withheld detail.