Fundraising PayPal error on email ID

On the settings page, Simple Payment Options, when I enter a PayPal email and click save it returns a 1 (one) in the email field. I have tried several different business emails same result. Same result in sandbox account. I setup the Crowdfunding with sandbox using the sandbox seller ID and that worked without any problems. Tried the same ID on Simple Payment Options, no Joy.

Any help would be greatly appreciated