Order Email problem

[kkk]

Hello,
Control Panel / E-Commerce / ShopSite / Order Emial

Default order mail is storeowner@user account.powweb.com

After submit order will go to PayPal url page.
(PayPal securely processes payments for storeowner@user account.powweb.com. You can finish paying in a few clicks)

The PayPal account is not exit,so it can't work.
I already have a PayPal account,I want to use my account to replace that)

I have change the setting to correct PayPal account,but it still go to the same page .
(PayPal securely processes payments for storeowner@user account.powweb.com. You can finish paying in a few clicks)

Please tell me how to do?
Thanks a lot !