@Parinya_Lokbow we have figured out that the issue is likely coming from a calendar mismatch. Another user solved this by changing the Regional Format to English(World) on their Windows machine. This version of Roon is not compatible with your database (Clean install) - #36 by Karin_Jivaluk You can use this article to do the same with Windows 11 How to adjust region settings on Windows 11 | Windows Central