Title: Fatal error Class ‘DateTimeImmutable’
Last modified: February 28, 2017

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# Fatal error Class ‘DateTimeImmutable’

 *  Resolved [moni77](https://wordpress.org/support/users/moni77/)
 * (@moni77)
 * [9 years, 2 months ago](https://wordpress.org/support/topic/fatal-error-class-datetimeimmutable/)
 * After inserting date custom field in a test page, I cannot edit nearly anything:
   Questions and answers, formulas, scores are no more editable (you can see the
   label, but you cannot open their content).
 * Users can do the test, but instead of the result page, they get this error:
 * “Fatal error: Class ‘DateTimeImmutable’ not found in /htdocs/public/www/wp/wp-
   content/plugins/wp-testing__fields/src/Model/FieldType/Date.php on line 35”
 * If you disable “Wp-testing — Fields” plugin, the editing test page is shown correctly
   again.
 * How can I solve or just remove the data field?
 * Thank you

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

 *  Plugin Contributor [ustimenko](https://wordpress.org/support/users/ustimenko/)
 * (@ustimenko)
 * [9 years, 2 months ago](https://wordpress.org/support/topic/fatal-error-class-datetimeimmutable/#post-8858795)
 * [@moni77](https://wordpress.org/support/users/moni77/) pls dont’ use this support
   forum for paid addons issues.
 * Use email for this.
 *  Thread Starter [moni77](https://wordpress.org/support/users/moni77/)
 * (@moni77)
 * [9 years, 2 months ago](https://wordpress.org/support/topic/fatal-error-class-datetimeimmutable/#post-8858911)
 * Sorry, I didn’t know. Thank you

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

The topic ‘Fatal error Class ‘DateTimeImmutable’’ is closed to new replies.

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## Tags

 * [wp-testing-paid-addons](https://wordpress.org/support/topic-tag/wp-testing-paid-addons/)

 * 2 replies
 * 2 participants
 * Last reply from: [moni77](https://wordpress.org/support/users/moni77/)
 * Last activity: [9 years, 2 months ago](https://wordpress.org/support/topic/fatal-error-class-datetimeimmutable/#post-8858911)
 * Status: resolved