Error when Mirroring data from Local drive to external drive

[jarcure]

Hello Getting the following errors when I do a Filesycn, says the files are locked but just wan to make sure Im doing it right

7:20:25 AM Info: 967 items found | Time elapsed: 00:00:00
7:20:25 AM Info: Synchronizing folder pair: Mirror ->
D:\Veeam Backup\O365
Z:\Backup365
7:20:25 AM Info: Creating file "Z:\Backup365\1998\TEst 1998.txt"
7:20:25 AM Info: Updating file "Z:\Backup365\2024\adbtmp.log"
7:20:25 AM Error: Cannot read file "D:\Veeam Backup\O365\2024\adbtmp.log".
The file is locked by another process:
Veeam Backup Proxy for Microsoft 365 Service [D:\Veeam Backup\Veeam.Archiver.Proxy.exe]
7:20:25 AM Info: Updating file "Z:\Backup365\2024\repository.adb"
7:20:25 AM Error: Cannot read file "D:\Veeam Backup\O365\2024\repository.adb".
The file is locked by another process:
Veeam Backup Proxy for Microsoft 365 Service [D:\Veeam Backup\Veeam.Archiver.Proxy.exe]
7:20:25 AM Info: Updating file "Z:\Backup365\2024\repository.jfm"
7:20:25 AM Error: Cannot read file "D:\Veeam Backup\O365\2024\repository.jfm".
The file is locked by another process:
Veeam Backup Proxy for Microsoft 365 Service [D:\Veeam Backup\Veeam.Archiver.Proxy.exe]
7:20:25 AM Info: Updating file "Z:\Backup365\2025\adb.log"
7:20:25 AM Error: Cannot read file "D:\Veeam Backup\O365\2025\adb.log".
The file is locked by another process:
Veeam Backup Proxy for Microsoft 365 Service [D:\Veeam Backup\Veeam.Archiver.Proxy.exe]
7:20:25 AM Info: Updating file "Z:\Backup365\2025\repository.adb"
7:20:25 AM Error: Cannot read file "D:\Veeam Backup\O365\2025\repository.adb".
The file is locked by another process:
Veeam Backup Proxy for Microsoft 365 Service [D:\Veeam Backup\Veeam.Archiver.Proxy.exe]
7:20:25 AM Info: Updating file "Z:\Backup365\2025\repository.jfm"
7:20:25 AM Error: Cannot read file "D:\Veeam Backup\O365\2025\repository.jfm".
The file is locked by another process:
Veeam Backup Proxy for Microsoft 365 Service [D:\Veeam Backup\Veeam.Archiver.Proxy.exe]

[xCSxXenon]

https://freefilesync.org/manual.php?topic=volume-shadow-copy