Critical Error Version 2.0.79

With the newest update, my client’s website gets a critical error:

Error Details

=============

An error of type E_ERROR was caused in line 521 of the file /nas/content/live/redactedstg/wp-content/plugins/easy-table-of-contents/includes/inc.plugin-compatibility.php. Error message: Uncaught Error: Call to a member function get() on null in /nas/content/live/redactedstg/wp-content/plugins/easy-table-of-contents/includes/inc.plugin-compatibility.php:521

Stack trace:

#0 /nas/content/live/redactedstg/wp-content/plugins/easy-table-of-contents/easy-table-of-contents.php(147): require_once()

#1 /nas/content/live/redactedstg/wp-content/plugins/easy-table-of-contents/easy-table-of-contents.php(96): ezTOC::includes()

#2 /nas/content/live/redactedstg/wp-content/plugins/easy-table-of-contents/easy-table-of-contents.php(2293): ezTOC::instance()

#3 /nas/content/live/redactedstg/wp-includes/class-wp-hook.php(324): ezTOC('')

#4 /nas/content/live/redactedstg/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array)

#5 /nas/content/live/redactedstg/wp-includes/plugin.php(517): WP_Hook->do_action(Array)

#6 /nas/content/live/redactedstg/wp-settings.php(578): do_action('plugins_loaded')

#7 /nas/content/live/redactedstg/wp-config.php(68): require_once('/nas/content/li...')

#8 /nas/content/live/redactedstg/wp-load.php(50): require_once('/nas/content/li...')

#9 /nas/content/live/redactedstg/wp-admin/admin.php(35): require_once('/nas/content/li...')

#10 /nas/content/live/redactedstg/wp-admin/update-core.php(10): require_once('/nas/content/li...')

#11 {main}

  thrown

Seems to be a conflict with WPBakery.