Title: Fatal Error in Simple Theme CSS
Last modified: February 22, 2021

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# Fatal Error in Simple Theme CSS

 *  Resolved [kmkaiser](https://wordpress.org/support/users/kmkaiser/)
 * (@kmkaiser)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-in-simple-theme-css/)
 * Hi.
 * I am using the current version of WooCommerce PDF Invoices and Packing Slips 
   plugin, with updated WooCommerce and php 7.3.
 * I was going to change the font in my Simple Theme folder (I had copied it to 
   my woocommerce theme folder), when I noticed there is an error in the style.css.
   It reads: Fatal Error, cannot continue: undefined is not an object (evaluating‘
   u[t]=1’)
 * Please let me know how to handle this error. I have not edited any css at this
   point.
 * Thanks so much.

Viewing 6 replies - 1 through 6 (of 6 total)

 *  Plugin Contributor [Ewout](https://wordpress.org/support/users/pomegranate/)
 * (@pomegranate)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-in-simple-theme-css/#post-14085368)
 * [@kmkaiser](https://wordpress.org/support/users/kmkaiser/) could you share a 
   screenshot of that error? It’s not entirely clear to me where you’re seeing this.
 *  Thread Starter [kmkaiser](https://wordpress.org/support/users/kmkaiser/)
 * (@kmkaiser)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-in-simple-theme-css/#post-14110269)
 * Hi Ewout,
    Sorry I missed your reply. It’s here: [https://verityblue.ca/wp-content/uploads/2021/02/Error-PDF-Forms.jpg](https://verityblue.ca/wp-content/uploads/2021/02/Error-PDF-Forms.jpg)
 *  Plugin Contributor [Ewout](https://wordpress.org/support/users/pomegranate/)
 * (@pomegranate)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-in-simple-theme-css/#post-14110459)
 * Thanks for sharing that. This appears to be an error in the editor itself rather
   than the CSS. You could edit it directly in WordPress via the Theme Editor or
   with your editor of choice if you upload it via FTP.
 *  Thread Starter [kmkaiser](https://wordpress.org/support/users/kmkaiser/)
 * (@kmkaiser)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-in-simple-theme-css/#post-14118159)
 * Sorry to be obtuse, but how would I edit this?
 *  Plugin Contributor [Darren Peyou](https://wordpress.org/support/users/dpeyou/)
 * (@dpeyou)
 * [5 years, 2 months ago](https://wordpress.org/support/topic/fatal-error-in-simple-theme-css/#post-14123536)
 * Hey [@kmkaiser](https://wordpress.org/support/users/kmkaiser/),
 * What [@pomegranate](https://wordpress.org/support/users/pomegranate/) means is
   the environment (or you could say the place itself) where you are editing this
   is causing the error, so instead of editing the files where you are currently
   doing it, could you do it somewhere else?
    For example, use this light editor:–
   Sublime Text: [https://www.sublimetext.com/3](https://www.sublimetext.com/3)
 * Or the WordPress editor itself. It looks like currently you might be editing 
   the files on some online site other than your WordPress site? Or maybe you have
   a plugin that changes your default WordPress editor?
 *  Thread Starter [kmkaiser](https://wordpress.org/support/users/kmkaiser/)
 * (@kmkaiser)
 * [5 years, 2 months ago](https://wordpress.org/support/topic/fatal-error-in-simple-theme-css/#post-14124581)
 * Ok thanks so much. I’ll try that.

Viewing 6 replies - 1 through 6 (of 6 total)

The topic ‘Fatal Error in Simple Theme CSS’ is closed to new replies.

 * ![](https://ps.w.org/woocommerce-pdf-invoices-packing-slips/assets/icon-256x256.
   png?rev=2189942)
 * [PDF Invoices & Packing Slips for WooCommerce](https://wordpress.org/plugins/woocommerce-pdf-invoices-packing-slips/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/woocommerce-pdf-invoices-packing-slips/#faq)
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## Tags

 * [css](https://wordpress.org/support/topic-tag/css/)
 * [fatal error](https://wordpress.org/support/topic-tag/fatal-error/)
 * [simple theme](https://wordpress.org/support/topic-tag/simple-theme/)

 * 6 replies
 * 3 participants
 * Last reply from: [kmkaiser](https://wordpress.org/support/users/kmkaiser/)
 * Last activity: [5 years, 2 months ago](https://wordpress.org/support/topic/fatal-error-in-simple-theme-css/#post-14124581)
 * Status: resolved