Hi @Uluan Alves ,
This error means your windows credentials are not correct or bot agent has incorrect windows username or password.
Open Command Prompt -> Type "Whoami" (Without "Quotes") -> Enter
Output will be your current windows username.
Open your A2019 Control Room URL.
Click on Laptop Icon on top right corner.
Enter output from above in Device username.
Click on update credentials -> Enter Password for the above user and Save.
The above steps should solve your problem.
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