Sync Error: Connection to QuickBooks has expired

If you get an error when syncing with QuickBooks Online that reads:

QuickBooks response: Connection to QuickBooks has expired or has been cancelled 

This can be fixed by reconnecting to QuickBooks. You can do this by going to the QuickBooks tab in your admin section and disconnecting from QuickBooks:

Then simply reconnect to QuickBooks in the same screen:

Then click Retry next to the error transactions in the QuickBooks transactions tab to fix them: