Error on my website

[hirenparekh]

hello,
I am getting Fatal ERROR, HOW TO SOLVE THIS?

Fatal error : Uncaught Error: Call to undefined function is_checkout() in /home/vol3_2/epizy.com/epiz_27623047/htdocs/wp-content/plugins/woo-checkout-field-editor-pro/classes/class-thwcfd-checkout.php:22 Stack trace: #0 /home/vol3_2/epizy.com/epiz_27623047/htdocs/wp-includes/class-wp-hook.php(287): THWCFD_Checkout->enqueue_styles_and_scripts(‘’) #1 /home/vol3_2/epizy.com/epiz_27623047/htdocs/wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters(NULL, Array) #2 /home/vol3_2/epizy.com/epiz_27623047/htdocs/wp-includes/plugin.php(484): WP_Hook->do_action(Array) #3 /home/vol3_2/epizy.com/epiz_27623047/htdocs/wp-includes/script-loader.php(2004): do_action(‘wp_enqueue_scri…’) #4 /home/vol3_2/epizy.com/epiz_27623047/htdocs/wp-includes/class-wp-hook.php(287): wp_enqueue_scripts(‘’) #5 /home/vol3_2/epizy.com/epiz_27623047/htdocs/wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters(NULL, Array) #6 /home/vol3_2/epizy.com/epiz_27623047/htdocs/wp-includes/plugin.php(484): WP_Hook->do_action(Array) #7 /home/vol3_2/epizy.com/ in /home/vol3_2/epizy.com/epiz_27623047/htdocs/wp-content/plugins/woo-checkout-field-editor-pro/classes/class-thwcfd-checkout.php on line 22

[FlutterHoney]

Installation failed: There has been a critical error on your website

[Admin]

@hirenparekh

woo-checkout-field-editor-pro

Seems like this plugin is broken. It could be a problem in the plugin, a problem with WooCommerce, version incompatibility or something else. Reinstalling both may help. But I think the plugin developers can help you better with this than we can.