You are storing your data on OneDrive share. I can’t say for sure that’s the root of the problem, but I have seen strange data loading issues in such cases.
I suggest trying to copy your your data that’s not inside the onedrive and load from there (e.g.,try c:/temp).
It might be some orphan storage node of some volume that was not saved (maybe it was empty or invalid or it was just not selected to be saved when the scene was saved). You can probably ignore the error.