Fatal error: Uncaught Error: Class 'Think\Log' not found in /home/air520uaci0rr502d0/wwwroot/ThinkPHP/Library/Think/Think.class.php:198 Stack trace: #0 [internal function]: Think\Think::appException(Object(Error)) #1 {main} thrown in /home/air520uaci0rr502d0/wwwroot/ThinkPHP/Library/Think/Think.class.php on line 198 Fatal error: Uncaught Error: Class 'Think\Log' not found in /home/air520uaci0rr502d0/wwwroot/ThinkPHP/Library/Think/Think.class.php:238 Stack trace: #0 [internal function]: Think\Think::fatalError() #1 {main} thrown in /home/air520uaci0rr502d0/wwwroot/ThinkPHP/Library/Think/Think.class.php on line 238