@Phan Thi Minh Tho - Thanks for the question and using MS Q&A platform.
This error message indicates that there was an unexpected exception while running your pipeline. This can happen due to various reasons like network issues, credential failures, or service outages. Azure Data Factory has an internal recovery process that monitors all the runs and starts them when it notices something went wrong.
You can try rerunning your pipelines and activities as described in the documentation here: Azure Data Factory: Rerun pipelines and activities
If the issue persists, you can share the location of the data factory for further assistance.
Hope this helps. Do let us know if you any further queries.