Unable to use wp (the cli tool) due to errors coming from Enfold

Hello,

There seems to be something wrong with my Enfold installation. When I try the following command,
$ wp plugin update --all

I get the following errors:

PHP Warning:  Undefined array key "HTTP_X_FORWARDED_PROTO" in phar:///usr/local/bin/wp/vendor/wp-cli/wp-cli/php/WP_CLI/Runner.php(1277) : eval()'d code on line 87
PHP Warning:  Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
Warning: Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
PHP Warning:  Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
Warning: Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
PHP Warning:  Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
Warning: Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
PHP Warning:  Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
Warning: Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
PHP Warning:  Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
Warning: Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
PHP Warning:  Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
Warning: Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
PHP Warning:  Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
Warning: Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
PHP Warning:  Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
Warning: Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
PHP Warning:  Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
Warning: Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
PHP Warning:  Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
Warning: Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
PHP Warning:  Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
Warning: Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
PHP Warning:  Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
Warning: Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
PHP Warning:  Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
Warning: Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
PHP Warning:  Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
Warning: Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
PHP Warning:  Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
Warning: Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
PHP Warning:  Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
Warning: Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
PHP Warning:  Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
Warning: Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
PHP Warning:  Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
Warning: Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
PHP Warning:  Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
Warning: Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
PHP Warning:  Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
Warning: Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
PHP Warning:  Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
Warning: Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
PHP Warning:  Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
Warning: Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
PHP Warning:  Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
Warning: Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
PHP Warning:  Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
Warning: Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
PHP Warning:  Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
Warning: Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
PHP Warning:  Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
Warning: Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
PHP Warning:  Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
Warning: Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
PHP Warning:  Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
Warning: Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
PHP Warning:  Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
Warning: Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
PHP Warning:  Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
Warning: Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
PHP Warning:  Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
Warning: Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
PHP Warning:  Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
Warning: Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
PHP Warning:  Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
Warning: Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
PHP Warning:  Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
Warning: Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
PHP Warning:  Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
Warning: Attempt to read property "options" on null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 66
PHP Warning:  Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
Warning: Trying to access array offset on value of type null in /var/www/html/wp-content/themes/enfold/framework/php/function-set-avia-frontend.php on line 74
PHP Fatal error:  Uncaught Error: Attempt to modify property "config" on null in /var/www/html/wp-content/themes/enfold/config-templatebuilder/avia-shortcodes/slideshow_layerslider/slideshow_layerslider.php:28
Stack trace:
#0 /var/www/html/wp-content/themes/enfold/config-templatebuilder/avia-template-builder/php/shortcode-template.class.php(65): avia_sc_layerslider->shortcode_insert_button()
#1 /var/www/html/wp-content/themes/enfold/config-templatebuilder/avia-template-builder/php/template-builder.class.php(1306): aviaShortcodeTemplate->__construct()
#2 /var/www/html/wp-content/themes/enfold/config-templatebuilder/avia-template-builder/php/template-builder.class.php(428): AviaBuilder->createShortcode()
#3 /var/www/html/wp-includes/class-wp-hook.php(341): AviaBuilder->init()
#4 /var/www/html/wp-includes/class-wp-hook.php(365): WP_Hook->apply_filters()
#5 /var/www/html/wp-includes/plugin.php(522): WP_Hook->do_action()
#6 /var/www/html/wp-settings.php(742): do_action()
#7 phar:///usr/local/bin/wp/vendor/wp-cli/wp-cli/php/WP_CLI/Runner.php(1317): require('...')
#8 phar:///usr/local/bin/wp/vendor/wp-cli/wp-cli/php/WP_CLI/Runner.php(1235): WP_CLI\Runner->load_wordpress()
#9 phar:///usr/local/bin/wp/vendor/wp-cli/wp-cli/php/WP_CLI/Bootstrap/LaunchRunner.php(28): WP_CLI\Runner->start()
#10 phar:///usr/local/bin/wp/vendor/wp-cli/wp-cli/php/bootstrap.php(78): WP_CLI\Bootstrap\LaunchRunner->process()
#11 phar:///usr/local/bin/wp/vendor/wp-cli/wp-cli/php/wp-cli.php(27): WP_CLI\bootstrap()
#12 phar:///usr/local/bin/wp/php/boot-phar.php(11): include('...')
#13 /usr/local/bin/wp(4): include('...')
#14 {main}
  thrown in /var/www/html/wp-content/themes/enfold/config-templatebuilder/avia-shortcodes/slideshow_layerslider/slideshow_layerslider.php on line 28
Fatal error: Uncaught Error: Attempt to modify property "config" on null in /var/www/html/wp-content/themes/enfold/config-templatebuilder/avia-shortcodes/slideshow_layerslider/slideshow_layerslider.php:28
Stack trace:
#0 /var/www/html/wp-content/themes/enfold/config-templatebuilder/avia-template-builder/php/shortcode-template.class.php(65): avia_sc_layerslider->shortcode_insert_button()
#1 /var/www/html/wp-content/themes/enfold/config-templatebuilder/avia-template-builder/php/template-builder.class.php(1306): aviaShortcodeTemplate->__construct()
#2 /var/www/html/wp-content/themes/enfold/config-templatebuilder/avia-template-builder/php/template-builder.class.php(428): AviaBuilder->createShortcode()
#3 /var/www/html/wp-includes/class-wp-hook.php(341): AviaBuilder->init()
#4 /var/www/html/wp-includes/class-wp-hook.php(365): WP_Hook->apply_filters()
#5 /var/www/html/wp-includes/plugin.php(522): WP_Hook->do_action()
#6 /var/www/html/wp-settings.php(742): do_action()
#7 phar:///usr/local/bin/wp/vendor/wp-cli/wp-cli/php/WP_CLI/Runner.php(1317): require('...')
#8 phar:///usr/local/bin/wp/vendor/wp-cli/wp-cli/php/WP_CLI/Runner.php(1235): WP_CLI\Runner->load_wordpress()
#9 phar:///usr/local/bin/wp/vendor/wp-cli/wp-cli/php/WP_CLI/Bootstrap/LaunchRunner.php(28): WP_CLI\Runner->start()
#10 phar:///usr/local/bin/wp/vendor/wp-cli/wp-cli/php/bootstrap.php(78): WP_CLI\Bootstrap\LaunchRunner->process()
#11 phar:///usr/local/bin/wp/vendor/wp-cli/wp-cli/php/wp-cli.php(27): WP_CLI\bootstrap()
#12 phar:///usr/local/bin/wp/php/boot-phar.php(11): include('...')
#13 /usr/local/bin/wp(4): include('...')
#14 {main}
  thrown in /var/www/html/wp-content/themes/enfold/config-templatebuilder/avia-shortcodes/slideshow_layerslider/slideshow_layerslider.php on line 28
Error: There has been a critical error on this website.Learn more about troubleshooting WordPress. There has been a critical error on this website.

Any help is appreciated!
Thanks,
Richard