where is the directory?
Where ever you downloaded Bronze Age, if you installed it through the itch.io App there is a button in the bottom right (when looking at the Bronze Age page) called "Show local files" that will open the install directory.
I'm seeing some reported errors around trying to load a save file "Inhe The Island Of Hammering". They could be your errors, in that case you may be trying to load an old (pre-2.0) save file. You can check for it in the "saves" folder in the Bronze Age directory. If the file doesn't have an XML extension then it's an old format save file that sadly can't be opened in Bronze Age 2.0.
You could download Bronze Age Classic to play that save file, though.