Fatal error: Uncaught Error: Call to undefined function WPDM\Package\wp_date() in /home/oishidashakyo/www/web/wp-content/plugins/download-manager/src/Package/Package.php:53 Stack trace: #0 /home/oishidashakyo/www/web/wp-content/plugins/download-manager/src/Package/Package.php(35): WPDM\Package\Package->init(903) #1 /home/oishidashakyo/www/web/wp-content/plugins/download-manager/src/Package/Shortcodes.php(61): WPDM\Package\Package->__construct(903) #2 /home/oishidashakyo/www/web/wp-includes/shortcodes.php(357): WPDM\Package\Shortcodes->singlePackage(Array, '', 'wpdm_package') #3 [internal function]: do_shortcode_tag(Array) #4 /home/oishidashakyo/www/web/wp-includes/shortcodes.php(235): preg_replace_callback('/\\[(\\[?)(wpdm_p...', 'do_shortcode_ta...', '[wpdm_package i...') #5 /home/oishidashakyo/www/web/wp-includes/class-wp-hook.php(286): do_shortcode('[wpdm_package i...') #6 /home/oishidashakyo/www/web/wp-includes/plugin.php(203): WP_Hook->apply_filters('[wpdm_package i...', Array) #7 /home/oishidashakyo/www/web/wp-inclu in /home/oishidashakyo/www/web/wp-content/plugins/download-manager/src/Package/Package.php on line 53