PDF Preview Plugin not working

Hello! I have

• Download Manager 3.3.08 and
• PDF Viewer for WordPress Download Manager: Version 3.2.0
  And i always get the error:

PHP Fatal error: Uncaught Error: Call to undefined method WPDM\Package\Package::isExpired() in /var/www/vhosts/WEBSITE/httpdocs/wp-content/plugins/wpdm-pdf-viewer/wpdm-pdf-viewer.php:115

Stack trace:

#0 /var/www/vhosts/WEBSITE/httpdocs/wp-includes/class-wp-hook.php(324): WPDM\AddOn\PDFViwer->viewer()

#1 /var/www/vhosts/WEBSITE/httpdocs/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters()

#2 /var/www/vhosts/WEBSITE/httpdocs/wp-includes/plugin.php(565): WP_Hook->do_action()

#3 /var/www/vhosts/WEBSITE/httpdocs/wp-includes/class-wp.php(830): do_action_ref_array()

#4 /var/www/vhosts/WEBSITE/httpdocs/wp-includes/functions.php(1336): WP->main()

#5 /var/www/vhosts/WEBSITE/httpdocs/wp-blog-header.php(16): wp()

#6 /var/www/vhosts/WEBSITE/httpdocs/index.php(17): require('...')

#7 {main}

How can I get rid of it?

Kind regards,
Christian

• This topic was modified 1 year, 2 months ago by woodyc79.