( ! ) Fatal error: Interface 'WechatPay\GuzzleMiddleware\Credentials' not found in D:\wamp64\www\thng-website\pay\vendor\wechatpay\wechatpay-guzzle-middleware\src\Auth\WechatPay2Credentials.php on line 26
Call Stack
#	Time	Memory	Function	Location
1	0.0018	400360	{main}( )	...\WechatPay2Credentials.php:0