Fatal error: Uncaught TypeError: call_user_func_array(): Argument #1 ($callback) must be a valid callback, function "p404_check_and_upgrade_database" not found or invalid function name in /customers/0/6/b/cq8p3h1ey/webroots/www/wp-includes/class-wp-hook.php:341
Stack trace:
#0 /customers/0/6/b/cq8p3h1ey/webroots/www/wp-includes/class-wp-hook.php(365): WP_Hook->apply_filters(NULL, Array)
#1 /customers/0/6/b/cq8p3h1ey/webroots/www/wp-includes/plugin.php(522): WP_Hook->do_action(Array)
#2 /customers/0/6/b/cq8p3h1ey/webroots/www/wp-settings.php(593): do_action('plugins_loaded')
#3 /customers/0/6/b/cq8p3h1ey/webroots/www/wp-config.php(131): require_once('/customers/0/6/...')
#4 /customers/0/6/b/cq8p3h1ey/webroots/www/wp-load.php(50): require_once('/customers/0/6/...')
#5 /customers/0/6/b/cq8p3h1ey/webroots/www/wp-content/plugins/complianz-terms-conditions/download.php(33): require_once('/customers/0/6/...')
#6 {main}
  thrown in /customers/0/6/b/cq8p3h1ey/webroots/www/wp-includes/class-wp-hook.php on line 341