Admin killing error using shortcode

When using the shortcode, it completely kills the WordPress admin. I have to use recovery mode to remove the shortcode.
Wordpress identifies this error:

Error Details
=============
An error of type E_ERROR was caused in line 42 of the file /home/▓▓▓▓▓/public_html/wp-content/plugins/woocommerce-login-popup-and-shortcodes/includes/shortcodes.php. Error message: Uncaught Error: Call to a member function get() on null in /home/▓▓▓▓▓/public_html/wp-content/plugins/woocommerce-login-popup-and-shortcodes/includes/shortcodes.php:42
Stack trace:
#0 /home/▓▓▓▓▓/public_html/wp-includes/shortcodes.php(325): woo_login_styler_display_sc('', '', 'woo-login-popup')
#1 [internal function]: do_shortcode_tag(Array)
#2 /home/▓▓▓▓▓/public_html/wp-includes/shortcodes.php(199): preg_replace_callback('/\\[(\\[?)(woo\\-l...', 'do_shortcode_ta...', '[woo-login-popu...')
#3 /home/▓▓▓▓▓/public_html/wp-includes/class-wp-hook.php(286): do_shortcode('[woo-login-popu...')
#4 /home/▓▓▓▓▓/public_html/wp-includes/plugin.php(208): WP_Hook->apply_filters('[woo-login-popu...', Array)
#5 /home/▓▓▓▓▓/public_html/wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php(1532): apply_filters('the_content', '