Title: Fatal error – missing encode_input_field() function
Last modified: December 29, 2025

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# Fatal error – missing encode_input_field() function

 *  Resolved [imrelaszlo](https://wordpress.org/support/users/imrelaszlo/)
 * (@imrelaszlo)
 * [5 months, 1 week ago](https://wordpress.org/support/topic/fatal-error-missing-encode_input_field-function/)
 * Hello!
 * Plugin version 2.3.8
 * `[29-Dec-2025 10:51:22 UTC] PHP Fatal error: Uncaught Error: Call to undefined
   method OnlineOptimisation\EmailEncoderBundle\Validate\Filters::encode_input_field()
   in /wp-content/plugins/email-encoder-bundle/src/Validate/Filters.php:251
   Stack
   trace: 0 [internal function]: OnlineOptimisation\EmailEncoderBundle\Validate\
   Filters->OnlineOptimisation\EmailEncoderBundle\Validate{closure}() 1 /wp-content/
   plugins/email-encoder-bundle/src/Validate/Filters.php(256): preg_replace_callback()
   2 /wp-content/plugins/email-encoder-bundle/src/Validate/Filters.php(122): OnlineOptimisation\
   EmailEncoderBundle\Validate\Filters->filter_input_fields()

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

 *  Plugin Author [Ivan](https://wordpress.org/support/users/ooivan/)
 * (@ooivan)
 * [5 months, 1 week ago](https://wordpress.org/support/topic/fatal-error-missing-encode_input_field-function/#post-18770299)
 * Hi [@imrelaszlo](https://wordpress.org/support/users/imrelaszlo/)
 * Thank you for bringing this up, it’s much appreciated.
 * It’s fixed in latest 2.3.9 update.
 *  Thread Starter [imrelaszlo](https://wordpress.org/support/users/imrelaszlo/)
 * (@imrelaszlo)
 * [5 months, 1 week ago](https://wordpress.org/support/topic/fatal-error-missing-encode_input_field-function/#post-18770418)
 * [@ooivan](https://wordpress.org/support/users/ooivan/) !
 * Many thanks for the quick fix, update installed.
 * I wish you a happy new year!

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

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 * 2 replies
 * 2 participants
 * Last reply from: [imrelaszlo](https://wordpress.org/support/users/imrelaszlo/)
 * Last activity: [5 months, 1 week ago](https://wordpress.org/support/topic/fatal-error-missing-encode_input_field-function/#post-18770418)
 * Status: resolved