Fatal error: Uncaught TypeError: trim(): Argument #1 ($string) must be of type string, array given in /www/wwwroot/testing.nanoa.cn/component/alipay/packagist/vendor/alipaysdk/openapi/v3/src/Util/AlipayConfigUtil.php:442 Stack trace: #0 /www/wwwroot/testing.nanoa.cn/component/alipay/packagist/vendor/alipaysdk/openapi/v3/src/Util/AlipayConfigUtil.php(442): trim() #1 /www/wwwroot/testing.nanoa.cn/component/alipay/packagist/vendor/alipaysdk/openapi/v3/src/Util/GenericExecuteApi.php(489): Alipay\OpenAPISDK\Util\AlipayConfigUtil->checkEmpty() #2 /www/wwwroot/testing.nanoa.cn/component/alipay/packagist/vendor/alipaysdk/openapi/v3/src/Util/GenericExecuteApi.php(469): Alipay\OpenAPISDK\Util\GenericExecuteApi->getSignContent() #3 /www/wwwroot/testing.nanoa.cn/component/alipay/packagist/vendor/alipaysdk/openapi/v3/src/Util/GenericExecuteApi.php(210): Alipay\OpenAPISDK\Util\GenericExecuteApi->handleParams() #4 /www/wwwroot/testing.nanoa.cn/component/alipay/trade.app.pay.php(53): Alipay\OpenAPISDK\Util\GenericExecuteApi->sdkExecute() #5 {main} thrown in /www/wwwroot/testing.nanoa.cn/component/alipay/packagist/vendor/alipaysdk/openapi/v3/src/Util/AlipayConfigUtil.php on line 442