Issue on launch

[xJon]

For some reason, when trying to launch I keep getting a message along the lines of "Mods updated please restart", alongside mods not working (they show up as installed - but their functions don't apply).
This error shows in the log:

[03:00:57.346] [ModBrowser] [ERROR] System.UnauthorizedAccessException: Access to the path "E:\Oculus\Software\harmonix-project-k\Mods\ArenaLoader.dll" is denied.

  at System.IO.File.Delete (System.String path) [0x00073] in <e1319b7195c343e79b385cd3aa43f5dc>:0 

  at ModBrowser.ModDownloader.HandlePendingUpdates () [0x00099] in <3256f7033a34444199853c8e61d52a6f>:0 

  at ModBrowser.Main.OnApplicationQuit () [0x00001] in <3256f7033a34444199853c8e61d52a6f>:0 

  at MelonLoader.MelonEvent+<>c.<Invoke>b__1_0 (MelonLoader.LemonAction x) [0x00000] in <6425afb6ac6a429aaf770255d2f7de57>:0 

  at MelonLoader.MelonEventBase`1[T].Invoke (System.Action`1[T] delegateInvoker) [0x00018] in <6425afb6ac6a429aaf770255d2f7de57>:0 

Removing ModBrowser resolves the issue.