Fatal error: Uncaught Error: Undefined class constant 'WPForms\Frontend\CSSVars::CONTAINER_SHADOW_SIZE' in /var/www/html/wp-content/plugins/wpforms-lite/src/Integrations/Loader.php:96
Stack trace:
#0 /var/www/html/wp-content/plugins/wpforms-lite/src/Integrations/Loader.php(57): WPForms\Integrations\Loader->register_class()
#1 /var/www/html/wp-content/plugins/wpforms-lite/src/Integrations/Loader.php(22): WPForms\Integrations\Loader->__construct()
#2 /var/www/html/wp-includes/class-wp-hook.php(324): WPForms\Integrations\Loader::get_instance()
#3 /var/www/html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters()
#4 /var/www/html/wp-includes/plugin.php(517): WP_Hook->do_action()
#5 /var/www/html/wp-content/plugins/wpforms-lite/src/WPForms.php(282): do_action()
#6 /var/www/html/wp-includes/class-wp-hook.php(324): WPForms\WPForms->objects()
#7 /var/www/html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters()
#8 /var/www/html/wp-includes/plugin.php(517): WP_Hook->do_action()
#9 /var/www/html/wp-settings.php(550) in /var/www/html/wp-content/plugins/wpforms-lite/src/Integrations/Loader.php on line 96