Once I changed to "EHR" I had no errors at startup, so I suspect it's something on your machine. I'm not super familiar with this code, but it certainly looks like there's another module trying to register the folder type.

- Have you done a rebuild since refactoring the modules?
- If you disable the EHR folder type (rename it .tmp) can you create folders of this type?
- If you can debug in IntelliJ then putting a breakpoint on ModuleLoader.registerFolderType() should pinpoint who is registering this folder type.

Adam