Two years later, same Flash storage error...
Long story short, it was running on Flash 23.0.x.x and now version is 31.0.153. After doing the replacement of npswf32.dll file, I also had to hit the "Delete All" button from Flash Global Settings - Advanced
To easily access that, right click on let's say town main screen, and a small list will appear (usually on the lower right side of the screen with Settings/Global Settings etc)
Hope it helps others as well
Have a nice day/night in Faeo !