I can't access my supplier records

I am unable to open my supplier records this afternoon.  I was using this section earlier today with no problem to put some invoices on, but this afternoon it is not opening any supplier records when I click on the supplier name.  I've tried logging out and back in, but still having the same problem.   Anyone else having this issue or know how to fix it?  Not good timing with end of month supplier payments needing done!