Defender not activating with error

Fatal error: Uncaught Error: Call to undefined function WP_Defender\dbDelta() in /xxxx/xxxxx/public_html/test/wp-content/plugins/defender-security/src/bootstrap.php:72 Stack trace: #0 /xxxx/xxxxxxx/public_html/test/wp-content/plugins/defender-security/src/bootstrap.php(35): WP_Defender\Bootstrap->create_database_tables() #1 /xxxxxx/xxxxxxx/public_html/test/wp-includes/class-wp-hook.php(292): WP_Defender\Bootstrap->activation_hook(”) #2 /xxxx/xxxxxxx/public_html/test/wp-includes/class-wp-hook.php(316): WP_Hook->apply_filters(”, Array) #3 /xxxxx/pxxxxxxx/public_html/test/wp-includes/plugin.php(484): WP_Hook->do_action(Array) #4 /home/xxxxxxx/public_html/test/wp-admin/plugins.php(193): do_action(‘activate_defend…’) #5 {main} thrown in /xxxxxxx/xxxxxxx/public_html/test/wp-content/plugins/defender-security/src/bootstrap.php on line 72