opencart最新版的paypal express问题

omghome123

请各位大神帮忙看一下，刚安装了opencart的v1.5.6.2，然后试一下购物就弹出：
Warning: number_format() expects parameter 1 to be double, array given in /home/omghome2/public_html/catalog/model/payment/pp_express.php on line 267Warning: number_format() expects parameter 1 to be double, array given in /home/omghome2/public_html/catalog/model/payment/pp_express.php on line 268Warning: Cannot modify header information - headers already sent by (output started at /home/omghome2/public_html/index.php:102) in /home/omghome2/public_html/system/engine/controller.php on line 28Warning: Cannot modify header information - headers already sent by (output started at /home/omghome2/public_html/index.php:102) in /home/omghome2/public_html/system/engine/controller.php on line 29

我的paypal express设置是：

sunboy

好像是个BUG，官方又出了新的安装包，你可以去看看