Error in MS Dynamics GP Transaction Entry

I am using MS Dynamic GP with Citrix. I’ve been out for a while and leave my GP open because I attended a meeting and when I came back I tried to open a voucher with Payables Transaction Entry, but I keep seeing error that states “You cannot display this record while another user is editing it”.
How can I continue working without getting this error?

Microsoft Dynamic GP
You cannot display this record while another user is editing it.
