I was saving my game when my laptop crashed and got this error. When I restarted the game one of my save files is missing. I've tried restarting my laptop but no. Any help is much appreciated.
21:00:07 ERROR game Exception occured trying to access file 'C:\Users\ayano\AppData\Roaming\StardewValley\Saves\Blossom_334988275\SaveGameInfo'
21:00:07 ERROR game System.Xml.XmlException: Root element is missing.
at System.Xml.XmlTextReaderImpl.Throw(Exception e)
The SaveGameInfo file is corrupted. It's basically the bookmark that shows SDV your save.
The game saves progress when the in-game day ends, i.e., when the farmer goes to bed, collapses from exhaustion, or collapses at 2am. All progress during a day is lost if the player quits the game without ending the day. In multiplayer, the game saves after all players click through the prompts...
stardewvalleywiki.com
Technically, since it's erroring only on the 'SaveGameInfo' file; you can first try replacing it with its "_old" version.
Otherwise, do the full instructions to roll back a game day.