Warning: Trying to access array offset on value of type bool in /usr/home/9folder/domains/cabaj.9folder.pl/public_html/wp-includes/plugin.php on line 233

Fatal error: Uncaught Error: Call to undefined function create_function() in /usr/home/9folder/domains/cabaj.9folder.pl/public_html/wp-content/plugins/page-scroll-to-id/includes/class-malihu-pagescroll2id-widget.php:58
Stack trace:
#0 /usr/home/9folder/domains/cabaj.9folder.pl/public_html/wp-content/plugins/page-scroll-to-id/malihu-pagescroll2id.php(952): require_once()
#1 /usr/home/9folder/domains/cabaj.9folder.pl/public_html/wp-settings.php(220): include_once('/usr/home/9fold...')
#2 /usr/home/9folder/domains/cabaj.9folder.pl/public_html/wp-config.php(97): require_once('/usr/home/9fold...')
#3 /usr/home/9folder/domains/cabaj.9folder.pl/public_html/wp-load.php(37): require_once('/usr/home/9fold...')
#4 /usr/home/9folder/domains/cabaj.9folder.pl/public_html/wp-blog-header.php(13): require_once('/usr/home/9fold...')
#5 /usr/home/9folder/domains/cabaj.9folder.pl/public_html/index.php(17): require('/usr/home/9fold...')
#6 {main}
  thrown in /usr/home/9folder/domains/cabaj.9folder.pl/public_html/wp-content/plugins/page-scroll-to-id/includes/class-malihu-pagescroll2id-widget.php on line 58