Receiving a page not found error

I’m receiving a cUrl error when trying to view pending orders –

cURL Error: error setting certificate verify locations: CAfile: C:\Plesk\Additional\PHPSettings\cacert.pem CApath: none

Any ideas as to how to fix? This is on a live site which has no current issues with processing via paypal.(currently using paypal pro).

The page I need help with: [log in to see the link]