Slim Application Error

The application could not run because of the following error:

Details

Type: ErrorException
Code: 2
Message: filesize(): stat failed for /var/www/www.csie.ncu.edu.tw/uploads/202002/f2338ec1b1ec6f6f3ff4d3032f364adf
File: /var/www/www.csie.ncu.edu.tw/models/Reference.php
Line: 371

Trace

#0 [internal function]: Slim\Slim::handleErrors(2, 'filesize(): sta...', '/var/www/www.cs...', 371, Array)
#1 /var/www/www.csie.ncu.edu.tw/models/Reference.php(371): filesize('/var/www/www.cs...')
#2 /var/www/www.csie.ncu.edu.tw/models/Reference.php(81): NcuCsie\Model\Reference::getFileInformation(Array)
#3 /var/www/www.csie.ncu.edu.tw/controllers/Site.php(169): NcuCsie\Model\Reference::getByUUID('d419afce81fd80d...')
#4 [internal function]: NcuCsie\Controller\{closure}('d419afce81fd80d...')
#5 /var/www/www.csie.ncu.edu.tw/vendors/slim/slim/Slim/Route.php(468): call_user_func_array(Object(Closure), Array)
#6 /var/www/www.csie.ncu.edu.tw/vendors/slim/slim/Slim/Slim.php(1338): Slim\Route->dispatch()
#7 /var/www/www.csie.ncu.edu.tw/vendors/slim/slim/Slim/Middleware/Flash.php(85): Slim\Slim->call()
#8 /var/www/www.csie.ncu.edu.tw/vendors/slim/slim/Slim/Middleware/MethodOverride.php(92): Slim\Middleware\Flash->call()
#9 /var/www/www.csie.ncu.edu.tw/vendors/slim/slim/Slim/Middleware/PrettyExceptions.php(67): Slim\Middleware\MethodOverride->call()
#10 /var/www/www.csie.ncu.edu.tw/vendors/slim/slim/Slim/Middleware/ContentTypes.php(81): Slim\Middleware\PrettyExceptions->call()
#11 /var/www/www.csie.ncu.edu.tw/vendors/slim/slim/Slim/Middleware/SessionCookie.php(110): Slim\Middleware\ContentTypes->call()
#12 /var/www/www.csie.ncu.edu.tw/middlewares/SessionToken.php(19): Slim\Middleware\SessionCookie->call()
#13 /var/www/www.csie.ncu.edu.tw/vendors/slim/slim/Slim/Middleware/PrettyExceptions.php(67): NcuCsie\Middleware\SessionToken->call()
#14 /var/www/www.csie.ncu.edu.tw/vendors/slim/slim/Slim/Slim.php(1283): Slim\Middleware\PrettyExceptions->call()
#15 /var/www/www.csie.ncu.edu.tw/application.php(35): Slim\Slim->run()
#16 /var/www/www.csie.ncu.edu.tw/public/index.php(19): Application->run()
#17 {main}