An error occurred

readdir(): Argument #1 ($dir_handle) must be of type resource or null, bool given

Exception information:

Message: readdir(): Argument #1 ($dir_handle) must be of type resource or null, bool given

Stack trace:

#0 /home/web/application/adds/model/Windtemp.php(68): readdir(false)
#1 /home/web/application/adds/controller/WindtempController.php(58): Windtemp::getPlot('wind', 'sfc', NULL)
#2 /home/web/Framework/Application.php(151): WindtempController->indexAction()
#3 /home/web/adds/doc-root/index.php(7): Framework\Application->run()
#4 {main}

Request Parameters: