Title: Plugin Error
Last modified: September 14, 2025

---

# Plugin Error

 *  [lmarmes](https://wordpress.org/support/users/lmarmes/)
 * (@lmarmes)
 * [9 months ago](https://wordpress.org/support/topic/plugin-error-235/)
 * I am trying to update my PHP and the this plugin is throwing an error.
 * PHP Fatal error:  Uncaught Error: Undefined constant “css_form_id” in /home/ljmlifei/
   domains/[mymedicaresupplementplan.org/public_html/wp-content/plugins/styles-and-layouts-for-gravity-forms/display/class-fields-styles.php:282\nStack](http://mymedicaresupplementplan.org/public_html/wp-content/plugins/styles-and-layouts-for-gravity-forms/display/class-fields-styles.php:282%5CnStack)
   trace:\n#0 /home/ljmlifei/domains/[mymedicaresupplementplan.org/public_html/wp-content/plugins/styles-and-layouts-for-gravity-forms/styles-layouts-gravity-forms.php(517)](http://mymedicaresupplementplan.org/public_html/wp-content/plugins/styles-and-layouts-for-gravity-forms/styles-layouts-gravity-forms.php(517)):
   include()\n#1 /home/ljmlifei/domains/[mymedicaresupplementplan.org/public_html/wp-includes/class-wp-hook.php(326)](http://mymedicaresupplementplan.org/public_html/wp-includes/class-wp-hook.php(326)):
   Gravity_customizer_admin->gform_enqueue_scripts()\n#2 /home/ljmlifei/domains/
   [mymedicaresupplementplan.org/public_html/wp-includes/class-wp-hook.php(348)](http://mymedicaresupplementplan.org/public_html/wp-includes/class-wp-hook.php(348)):
   WP_Hook->apply_filters()\n#3 /home/ljmlifei/domains/[mymedicaresupplementplan.org/public_html/wp-includes/plugin.php(517)](http://mymedicaresupplementplan.org/public_html/wp-includes/plugin.php(517)):
   WP_Hook->do_action()\n#4 /home/ljmlifei/domains/[mymedicaresupplementplan.org/public_html/wp-content/plugins/gravityforms/gravityforms.php(7380)](http://mymedicaresupplementplan.org/public_html/wp-content/plugins/gravityforms/gravityforms.php(7380)):
   do_action()\n#5 /home/ljmlifei/domains/[mymedicaresupplementplan.org/public_html/wp-content/plugins/gravityforms/form_display.php(3268)](http://mymedicaresupplementplan.org/public_html/wp-content/plugins/gravityforms/form_display.php(3268)):
   gf_do_action()\n#6 /home/ljmlifei/domains/[mymedicaresupplementplan.org/public_html/wp-content/plugins/gravityforms/form_display.php(1230)](http://mymedicaresupplementplan.org/public_html/wp-content/plugins/gravityforms/form_display.php(1230)):
   GFFormDisplay::enqueue_form_scripts()\n#7 /home/ljmlifei/domains/[mymedicaresupplementplan.org/public_html/wp-content/plugins/gravityforms/gravityforms.php(3660)](http://mymedicaresupplementplan.org/public_html/wp-content/plugins/gravityforms/gravityforms.php(3660)):
   GFFormDisplay::get_form()\n#8 /home/ljmlifei/domains/[mymedicaresupplementplan.org/public_html/wp-content/plugins/gravityforms/gravityforms.php(2270)](http://mymedicaresupplementplan.org/public_html/wp-content/plugins/gravityforms/gravityforms.php(2270)):
   GFForms::get_form()\n#9 /home/ljmlifei/domains/[mymedicaresupplementplan.org/public_html/wp-includes/shortcodes.php(434)](http://mymedicaresupplementplan.org/public_html/wp-includes/shortcodes.php(434)):
   GFForms::parse_shortcode()\n#10 [internal function]: do_shortcode_tag()\n#11 /
   home/ljmlifei/domains/[mymedicaresupplementplan.org/public_html/wp-includes/shortcodes.php(273)](http://mymedicaresupplementplan.org/public_html/wp-includes/shortcodes.php(273)):
   preg_replace_callback()\n#12 /home/ljmlifei/domains/[mymedicaresupplementplan.org/public_html/wp-content/plugins/popup-maker/classes/Helpers.php(22)](http://mymedicaresupplementplan.org/public_html/wp-content/plugins/popup-maker/classes/Helpers.php(22)):
   do_shortcode()\n#13 /home/ljmlifei/domains/[mymedicaresupplementplan.org/public_html/wp-include](http://mymedicaresupplementplan.org/public_html/wp-include)

The topic ‘Plugin Error’ is closed to new replies.

 * ![](https://ps.w.org/styles-and-layouts-for-gravity-forms/assets/icon-256x256.
   png?rev=1352290)
 * [Gravity Booster - Styles & Layouts for Gravity Forms](https://wordpress.org/plugins/styles-and-layouts-for-gravity-forms/)
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 * 0 replies
 * 1 participant
 * Last reply from: [lmarmes](https://wordpress.org/support/users/lmarmes/)
 * Last activity: [9 months ago](https://wordpress.org/support/topic/plugin-error-235/)
 * Status: not resolved