Title: Error in QR Code Generation
Last modified: February 15, 2019

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# Error in QR Code Generation

 *  [jonasrafael](https://wordpress.org/support/users/jonasrafael/)
 * (@jonasrafael)
 * [7 years, 3 months ago](https://wordpress.org/support/topic/error-in-qr-code-generation/)
 * After a while the plugin simply stops generating pdfs. I tried to disable and
   enable the plugin but it still does not work. It only regenerates pdfs after 
   deleting the plugin and uploading again.
 * I tried on two different servers with nginx (do) and with apache (md) and the
   problem continued to occur.
 * In the debug or error that appears is the following:
    `[14-Feb-2019 14:01:44 
   UTC] PHP Notice: Undefined index: tc_tax_value in /wp-content/plugins/tickera-
   event-ticketing-system/includes/internal-hooks.php on line 351`
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Ferror-in-qr-code-generation%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 2 replies - 1 through 2 (of 2 total)

 *  [Prelevic Milos](https://wordpress.org/support/users/prelevicm/)
 * (@prelevicm)
 * [7 years, 2 months ago](https://wordpress.org/support/topic/error-in-qr-code-generation/#post-11216683)
 * As replied in the it might be due to a memory limit.
    Please try boosting it 
   to at least 512MB in wp-config.php
 * You can also drop us a line on our Tickera website (contact page) so we can help
   you further.
 *  Thread Starter [jonasrafael](https://wordpress.org/support/users/jonasrafael/)
 * (@jonasrafael)
 * [7 years, 2 months ago](https://wordpress.org/support/topic/error-in-qr-code-generation/#post-11221237)
 * It did not solve, it continues giving connection error with the database and 
   problems when generating the ticket.
    Okay, I’ll open a support there.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Error in QR Code Generation’ is closed to new replies.

 * ![](https://ps.w.org/tickera-event-ticketing-system/assets/icon-256x256.jpg?rev
   =1328378)
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 * [Support Threads](https://wordpress.org/support/plugin/tickera-event-ticketing-system/)
 * [Active Topics](https://wordpress.org/support/plugin/tickera-event-ticketing-system/active/)
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## Tags

 * [pdf](https://wordpress.org/support/topic-tag/pdf/)

 * 2 replies
 * 2 participants
 * Last reply from: [jonasrafael](https://wordpress.org/support/users/jonasrafael/)
 * Last activity: [7 years, 2 months ago](https://wordpress.org/support/topic/error-in-qr-code-generation/#post-11221237)
 * Status: not resolved