Works during debug but not when i go live

 My app works fine on my box when im testing it but i get this error right when i make it go live. I can't seem to figure out whats going on.




[IndexOutOfRangeException: Index was outside the bounds of the array.]
POTracker.create.GetInitialsFromString(String fullName) in C:\Users\ben_logan\Desktop\PO Tracker\POTracker\POTracker\POTracking\create.aspx.vb:13
POTracker.create.ponumgenerator() in C:\Users\ben_logan\Desktop\PO Tracker\POTracker\POTracker\POTracking\create.aspx.vb:85
POTracker.create.savebutton_Click(Object sender, ImageClickEventArgs e) in C:\Users\ben_logan\Desktop\PO Tracker\POTracker\POTracker\POTracking\create.aspx.vb:232
System.Web.UI.WebControls.ImageButton.OnClick(ImageClickEventArgs e) +86
System.Web.UI.WebControls.ImageButton.RaisePostBackEvent(String eventArgument) +115
System.Web.UI.WebControls.ImageButton.System.Web.UI.IPostBackEventHand ...