Warning: require(./App/Core//ThinkPHP.php): Failed to open stream: No such file or directory in /www/wwwroot/aopin.net/index.php on line 28

Fatal error: Uncaught Error: Failed opening required './App/Core//ThinkPHP.php' (include_path='.:') in /www/wwwroot/aopin.net/index.php:28 Stack trace: #0 {main} thrown in /www/wwwroot/aopin.net/index.php on line 28