Payment Conditions Error

Hi. Joe. When i`m adding a shipping fee. payments status is going to “Pending” and customer dont receives his receipt. Admin receives email with this error:

From: WordPress *********
Date: 4 August 2016 at 23:42
Subject: Payment Conditions Error
To: *********

PayPal receiver email did not match account or payment currency did not match payment on 630

Array
(
    [transaction_id] => 5JV29777U46176229
    [price] => 0.70
    [currency] => GBP
    [email] => *********
    [first_name] => *********
    [last_name] => *********
    [fee] => 0.22
    [parent] =>
    [status] => Completed
    [purchase_id] => 630
    [shipping] => Array
        (
            [street] => *********
            [street2] =>
            [city] => *********
            [state] => *********
            [country] => GB
            [code] => SY10 7PR
        )

)

Everything works fine if its free. Am i doing something wrong?

https://ww.wp.xz.cn/plugins/my-tickets/