I got this weird message when i tried to put in some new music?

[plantplant]

"MusicBee v3.1.6275.38881 (Win10.0), 13 Mar 2017 18:29:

System.IndexOutOfRangeException: Index was outside the bounds of the array.
   at System.Windows.Forms.Control.MarshaledInvoke(Control caller, Delegate method, Object[] args, Boolean synchronous)
   at System.Windows.Forms.Control.Invoke(Delegate method, Object[] args)
   at System.Windows.Forms.Control.Invoke(Delegate method)
   at MusicBee.MusicBeeApplication.#=qgss1Ax7IZFYc1IkFHC9Bvw==(MethodInvoker #=qpoDNiFHF0MWq7TPUDczoJA==)
   at MusicBee.MusicBeeMain.#=qRD1mBe7pl30DEAxwQFUiYA==(Object #=qfaz2TpIOTs6kfp_jfzsMrw==)"

Does anybody know what this is and how do i fix it?     >>> (picture of the error message)

[plantplant]

oops the picture didnt send ,here
http://imgur.com/a/NYEuA

[phred]

What were you doing when the error occurred?
Does it happen every time you do this?
Please list the steps to reproduce.

[Steven]

according to the error the "send to library" command is being invoked. You would need to provide some more explanation around what you are doing