KuCoin has an API key-based rate limit. In the event that the API key entered in Hummingbot Miner reaches this rate limit, our system currently deactivates the API key.
Steps to resolve:
1. Follow this link to create a new read-only API key and update in Hummingbot Miner
2. Ensure that this key is designated for Hummingbot Miner use only
We are currently working on a system update to re-enable API keys that have been deactivated. We will update users once this fix has been deployed.