Title: Internal Server Error
Last modified: August 31, 2016

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# Internal Server Error

 *  [designhousebinz](https://wordpress.org/support/users/designhousebinz/)
 * (@designhousebinz)
 * [10 years, 1 month ago](https://wordpress.org/support/topic/internal-server-error-401/)
 * Hi,
 * I got a problem with my WooCommerce PDF Invoices & Packing Slips Plugin. I cant
   print anymore the PDF Invoices. I got the following error when I open the invoice.
 * **Internal Server Error**
 * The server encountered an internal error or misconfiguration and was unable to
   complete your request.
 * Please contact the server administrator at [no address given] to inform them 
   of the time this error occurred, and the actions you performed just before this
   error.
 * More information about this error may be available in the server error log.
 * Apache Server at [http://www.design-house-binz.de](http://www.design-house-binz.de)
   Port 80
 * The wordpress debug dont show anything. When I activate the plugins debug, nothing
   is shown. When I create the Output to HTML invoice it is working fine. In the
   status all fields are green. What can be the reason for that?
    It is also not
   working on a different PC.
 * Best regards Sebastian
 * [https://wordpress.org/plugins/woocommerce-pdf-invoices-packing-slips/](https://wordpress.org/plugins/woocommerce-pdf-invoices-packing-slips/)

Viewing 1 replies (of 1 total)

 *  Plugin Contributor [Ewout](https://wordpress.org/support/users/pomegranate/)
 * (@pomegranate)
 * [10 years, 1 month ago](https://wordpress.org/support/topic/internal-server-error-401/#post-7199789)
 * Hi! If you’re getting an internal server error but no debug output, you host 
   is probably blocking the PHP errors somewhere and overriding the WP debug settings.
   Ask your host if they can tell you the error or where you can find the PHP error
   logs so you can find the root cause of this error.
 * If I were to guess, I’d say it’s from a plugin adding output to the layout that
   is not 100% valid HTML. The PDF converter is not as forgiving as your browser,
   so this may be why you get the browser output but not the PDF. If you have installed
   any plugins at the time this started happening, try temporarily disabling them
   to see if that helps.
 * Let me know if you have found the PHP error behind the internal server error 
   and don’t know what to do with it!
 * Ewout

Viewing 1 replies (of 1 total)

The topic ‘Internal Server Error’ 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)
 * [Support Threads](https://wordpress.org/support/plugin/woocommerce-pdf-invoices-packing-slips/)
 * [Active Topics](https://wordpress.org/support/plugin/woocommerce-pdf-invoices-packing-slips/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/woocommerce-pdf-invoices-packing-slips/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/woocommerce-pdf-invoices-packing-slips/reviews/)

 * 1 reply
 * 2 participants
 * Last reply from: [Ewout](https://wordpress.org/support/users/pomegranate/)
 * Last activity: [10 years, 1 month ago](https://wordpress.org/support/topic/internal-server-error-401/#post-7199789)
 * Status: not resolved