What is the error?

What is the error in this code?

@main

struct CollectionManagerApp: App {

    init() {

        do {

            var bo: ObjCBool = true

            let library = try FileManager().url(for: .applicationSupportDirectory, in: .userDomainMask, appropriateFor: nil, create: false).appending(path: "CollectionManager")

            let database = library.appendingPathComponent("DataBase.plist")

            if !FileManager().fileExists(atPath: library.absoluteString) {

                try FileManager().createDirectory(at: library, withIntermediateDirectories: false)

            }

            if !FileManager().fileExists(atPath: database.absoluteString) {

                FileManager().createFile(atPath: database.absoluteString, contents: nil)

                print("OK")

            }

        } catch {

            print("Init Error:  \(error)\nEND")

        }

    }

    var body: some Scene {

        WindowGroup {

            ContentView()

        }

    }

}

The error:

Init Error:  Error Domain=NSCocoaErrorDomain Code=516 "The file “CollectionManager” couldn’t be saved in the folder “Application Support” because a file with the same name already exists." UserInfo={NSFilePath=/Users/gattino09/Library/Application Support/CollectionManager, NSUnderlyingError=0x600003ba0150 {Error Domain=NSPOSIXErrorDomain Code=17 "File exists"}}

END
What is the error?
 
 
Q