Can you ping by the hostname? (It’s always DNS)

Hello, when I proceeded from the Physical Infrastructure section, I think the backup was made. I did not receive the success message when the backup was completed, I do not know if it will be a problem.

@Emin ÖZCAN From your screenshot, I noticed that the backup completed with a warning: “SQL VSS Writer is missing.”

If your server has MS SQL installed, please follow the steps in this KB article to resolve the VSS writer issue: https://www.veeam.com/kb2095. The next backup should complete without the warning. Ensure that the Guest OS credentials have "Sysadmin" permissions on the MS SQL instance.

Hello, my problem has been solved, when I took a full backup for the second time, there was no SQL error, thank you.