Error message

• Deprecated function: ZipArchive::open(): Using empty file as ZipArchive is deprecated in Drupal\Core\Archiver\Zip->__construct() (line 41 of core/lib/Drupal/Core/Archiver/Zip.php).
• Warning: file_get_contents(/tmp/zip_temp9304tg39187hdgCiMmP.zip): Failed to open stream: No such file or directory in Drupal\emmr_core\Controller\EmmrCoreController->imageZip() (line 191 of modules/custom/emmr_core/src/Controller/EmmrCoreController.php).