Fatal Error in 2.0.79

PHP Fatal error:  Uncaught Error: Call to a member function get() on null in /home/hammer1/public_html/wp-content/plugins/easy-table-of-contents/includes/inc.plugin-compatibility.php:521
Stack trace:
#0 /home/hammer1/public_html/wp-content/plugins/easy-table-of-contents/easy-table-of-contents.php(147): require_once()
#1 /home/hammer1/public_html/wp-content/plugins/easy-table-of-contents/easy-table-of-contents.php(96): ezTOC::includes()
#2 /home/hammer1/public_html/wp-content/plugins/easy-table-of-contents/easy-table-of-contents.php(2293): ezTOC::instance()
#3 /home/hammer1/public_html/wp-includes/class-wp-hook.php(341): ezTOC()
#4 /home/hammer1/public_html/wp-includes/class-wp-hook.php(365): WP_Hook->apply_filters()
#5 /home/hammer1/public_html/wp-includes/plugin.php(522): WP_Hook->do_action()
#6 /home/hammer1/public_html/wp-settings.php(593): do_action()
#7 /home/hammer1/public_html/wp-config.php(84): require_once('/home/hammer1/p...')
#8 /home/hammer1/public_html/wp-load.php(50): require_once('/home/hammer1/p...')
#9 /home/hammer1/public_html/wp-blog-header.php(13): require_once('/home/hammer1/p...')
#10 /home/hammer1/public_html/index.php(17): require('/home/hammer1/p...')
#11 {main}
  thrown in /home/hammer1/public_html/wp-content/plugins/easy-table-of-contents/includes/inc.plugin-compatibility.php on line 521