Sage 50 US

After Running Year End in Sage50 I cannot browse to my correct company file... It's there in file explorer and I can see the folder when I try to 'browse' to it in SAGE but, it will not open it. I get a popup that says, "Please Select Company" It's…

I have a few invoices that were paid or partially paid with waiting on bill selected and I am not able to remove it. How do I deselect 'waiting on bill' without having to delete the payment then uncheck the box and reentering the payment?