Warning: Trying to access array offset on value of type bool in /var/www/118/htdocs/wp/wp-content/plugins/download-manager/libs/class.Package.php on line 58

Fatal error: Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, string given in /var/www/118/htdocs/wp/wp-content/plugins/download-manager/libs/class.Package.php:127 Stack trace: #0 /var/www/118/htdocs/wp/wp-content/plugins/download-manager/libs/class.Package.php(127): count() #1 /var/www/118/htdocs/wp/wp-content/plugins/download-manager/libs/class.Package.php(1014): WPDM\Package->Prepare() #2 /var/www/118/htdocs/wp/wp-content/plugins/download-manager/libs/class.Apply.php(637): WPDM\Package::fetchTemplate() #3 /var/www/118/htdocs/wp/wp-includes/class-wp-hook.php(324): WPDM\libs\Apply->oEmbed() #4 /var/www/118/htdocs/wp/wp-includes/plugin.php(205): WP_Hook->apply_filters() #5 /var/www/118/htdocs/wp/wp-includes/embed.php(1020): apply_filters() #6 /var/www/118/htdocs/wp/wp-includes/theme-compat/embed-content.php(101): the_excerpt_embed() #7 /var/www/118/htdocs/wp/wp-includes/template.php(812): require('...') #8 /var/www/118/htdocs/wp/wp-includes/template.php(745): load_template() #9 /var/www/118/htdocs/wp/wp-includes/general-template.php(206): locate_template() #10 /var/www/118/htdocs/wp/wp-includes/theme-compat/embed.php(18): get_template_part() #11 /var/www/118/htdocs/wp/wp-includes/template-loader.php(106): include('...') #12 /var/www/118/htdocs/wp/wp-blog-header.php(19): require_once('...') #13 /var/www/118/htdocs/index.php(17): require('...') #14 {main} thrown in /var/www/118/htdocs/wp/wp-content/plugins/download-manager/libs/class.Package.php on line 127