500! 'ApiError: DateTime: Tue Oct 15 2019 14:33:17 GMT+0800 (CST) API: /api/paper/detail?pid=1886055
500 Internal Server Error
Exception (Database Exception) 'yii/db/Exception' with message 'SQLSTATE[HY000] [2002] Cannot assign requested address' /n/nin /www/wwwroot/www.zujuan.com/vendor/yiisoft/yii2/db/Connection.php:624/n/nStack trace:/n#0 /www/wwwroot/www.zujuan.com/vendor/yiisoft/yii2/db/Connection.php(996): yii/db/Connection->open()/n#1 /www/wwwroot/www.zujuan.com/vendor/yiisoft/yii2/db/Connection.php(983): yii/db/Connection->getMasterPdo()/n#2 /www/wwwroot/www.zujuan.com/vendor/yiisoft/yii2/db/Command.php(253): yii/db/Connection->getSlavePdo()/n#3 /www/wwwroot/www.zujuan.com/vendor/yiisoft/yii2/db/Command.php(1143): yii/db/Command->prepare(true)/n#4 /www/wwwroot/www.zujuan.com/vendor/yiisoft/yii2/db/Command.php(413): yii/db/Command->queryInternal('fetch', NULL)/n#5 /www/wwwroot/www.zujuan.com/vendor/yiisoft/yii2/db/Query.php(274): yii/db/Command->queryOne()/n#6 /www/wwwroot/www.zujuan.com/vendor/yiisoft/yii2/db/ActiveQuery.php(292): yii/db/Query->one(NULL)/n#7 /www/wwwroot/www.zujuan.com/common/models/tkonline/QuestionBasket.php(106): yii/db/ActiveQuery->one()/n#8 /www/wwwroot/www.zujuan.com/apidata/paper/PaperData.php(137): common/models/tkonline/QuestionBasket::CreateVirtual(Array)/n#9 /www/wwwroot/www.zujuan.com/zujuannet/modules/api/controllers/PaperController.php(371): apidata/paper/PaperData->PaperDetail('1886055', 0)/n#10 [internal function]: zujuannet/modules/api/controllers/PaperController->actionDetail('1886055')/n#11 /www/wwwroot/www.zujuan.com/vendor/yiisoft/yii2/base/InlineAction.php(57): call_user_func_array(Array, Array)/n#12 /www/wwwroot/www.zujuan.com/vendor/yiisoft/yii2/base/Controller.php(157): yii/base/InlineAction->runWithParams(Array)/n#13 /www/wwwroot/www.zujuan.com/vendor/yiisoft/yii2/base/Module.php(528): yii/base/Controller->runAction('detail', Array)/n#14 /www/wwwroot/www.zujuan.com/vendor/yiisoft/yii2/web/Application.php(103): yii/base/Module->runAction('api/paper/detai...', Array)/n#15 /www/wwwroot/www.zujuan.com/vendor/yiisoft/yii2/base/Application.php(386): yii/web/Application->handleRequest(Object(yii/web/Request))/n#16 /www/wwwroot/www.zujuan.com/zujuannet/web/index.php(19): yii/base/Application->run()/n#17 {main}

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