People who host their Layer on a Linux system have to change the file path for including the API:
Open BF4DB.cs and change line 77:
- String fullPath = Path.GetFullPath(@"Plugins\BF4\BF4DB_API.dll");
to
- String fullPath = Path.GetFullPath(@"Plugins/BF4/BF4DB_API.dll");
Edit: The plugin is incompatible with mono. A compatible version will be released soon.