Error report

[junkdiver]

MusicBee v3.3.7310.31925D  (Win6.1), 21 Jan 2020 17:00:

System.NullReferenceException: Object reference not set to an instance of an object.
   at #=ziJArnjAZ4TkjPrSs58D5swQ=.#=zxoJLcUvZCjPS.#=zwtBtXbpvotqy(Int32 #=z3VqvZ3o=, Int32 #=zaj0YOMU=, String #=zDBhoVIU=)
   at #=ziJArnjAZ4TkjPrSs58D5swQ=.#=z9gpmY1EHhic_.#=z7OpAnbo=(String #=zDBhoVIU=)
   at #=zrm_M78nSaP3YmqcNp21FiYtgIAJE.#=zEMavtF7yHAgz(Object #=z2g8LTV4=, #=zj5qzy61lNQqudG6DtvZBLkeQ0734 #=zS9VYR_E=)
   at #=zHJRZGBMAENWF3vFCMzo1seE=.OnLeave(EventArgs #=zS9VYR_E=)
   at System.Windows.Forms.Control.NotifyLeave()
   at System.Windows.Forms.ContainerControl.UpdateFocusedControl()

[phred]

Details please, of what you were doing when you got this error? And a step-by-step of what led up to it so we can try to reproduce it