@Long Song - Thanks for the question and using MS Q&A platform.
The query posted by you has not reached the right forum. In order to assist best on your query, I would request you to post your query in SO => Azure Devops dedicated support. Additionally, adding the [Azure] tag on SO will increase visibility as it is a Microsoft Sponsored tag.
https://stackoverflow.com/questions/tagged/azure-devops
OR
Report any Azure Devops problems on Developer Community.
This will assist you with a faster reply to your query.