2025-09-30, 11:51 AM
There is an XML document that Jellyfin is opening and attempting to read. However, when reading the contents, it's simply not XML data.
This can be determined by the first error:
The fact that line 1 position 1 is a null byte (0x00) indicates an empty file, but Jellyfin is not indicating what file it's attempting to read here. I'd hazard a guess that it's probably system.xml
Without access to your system I can't tell you why the file is empty (or perhaps unreadable).
My suggestion would be to uninstall and reinstall at this point.
I don't mean this in an unpleasant way, but if you're unable to determine the nature of the startup failure from the logs, I don't fancy your chance of debugging the issue or repairing the existing installation.
I am not affiliated with the Jellyfin team, they might be more helpful, but honestly I think the most likely problem here is that you have inadvertently removed or emptied a file you shouldn't have touched.
This can be determined by the first error:
Code:
System.InvalidOperationException: There is an error in XML document (1, 1).
---> System.Xml.XmlException: '.', hexadecimal value 0x00, is an invalid character. Line 1, position 1.The fact that line 1 position 1 is a null byte (0x00) indicates an empty file, but Jellyfin is not indicating what file it's attempting to read here. I'd hazard a guess that it's probably system.xml
Without access to your system I can't tell you why the file is empty (or perhaps unreadable).
My suggestion would be to uninstall and reinstall at this point.
I don't mean this in an unpleasant way, but if you're unable to determine the nature of the startup failure from the logs, I don't fancy your chance of debugging the issue or repairing the existing installation.
I am not affiliated with the Jellyfin team, they might be more helpful, but honestly I think the most likely problem here is that you have inadvertently removed or emptied a file you shouldn't have touched.