Hello Siobhan, 

Thanks for posting on this thread, 

So we are currently aware that customers are having an issue trying to connect to their PayPal accounts and are getting the message 'some of your information isn't correct. Please try again'  there is an investigation on this currently INV- 56853 that you have been added onto and soon as there is any update you will be informed via email. In the mean time the workaround is to manually upload csv file.