Installing the plugin crashes a site

Hey, I’ve been using this plugin on several sites. I tried to install it in a new site, and activating it makes the site crash with the following error:

An error of type E_ERROR was caused in line 453 of the file /public_html/wp-content/plugins/beautiful-link-preview/admin/class-zwt_wp_linkpreviewer-admin.php. Error message: Uncaught TypeError: array_key_exists(): Argument #2 ($array) must be of type array, bool given in /public_html/wp-content/plugins/beautiful-link-preview/admin/class-zwt_wp_linkpreviewer-admin.php:453
Stack trace:
#0 /public_html/wp-content/plugins/beautiful-link-preview/admin/class-zwt_wp_linkpreviewer-admin.php(122): Zwt_wp_linkpreviewer_Admin->getOrDefault()
#1 /public_html/wp-includes/class-wp-hook.php(324): Zwt_wp_linkpreviewer_Admin->enqueue_scripts()
#2 /public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters()
#3 /public_html/wp-includes/plugin.php(517): WP_Hook->do_action()
#4 /public_html/wp-admin/admin-header.php(118): do_action()
#5 /public_html/wp-admin/plugins.php(621): require_once('/home/.cl...')