Title: PHP message: PHP Fatal error: Uncaught Error: Call to undefined function
Last modified: July 7, 2025

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# PHP message: PHP Fatal error: Uncaught Error: Call to undefined function

 *  Resolved [Jim Garrigan](https://wordpress.org/support/users/garrigan/)
 * (@garrigan)
 * [11 months, 2 weeks ago](https://wordpress.org/support/topic/php-warning-undefined-variable-deprecated/)
 * PHP message: PHP Fatal error: Uncaught Error: Call to undefined function add_settings_error()
   in /XXXXXXXXXXXXX/wp-content/plugins/llms-full-txt-generator/llms-full-txt-generator.
   php:340
    -  This topic was modified 11 months, 2 weeks ago by [Jim Garrigan](https://wordpress.org/support/users/garrigan/).

Viewing 4 replies - 1 through 4 (of 4 total)

 *  Plugin Author [visibility.so](https://wordpress.org/support/users/rankth/)
 * (@rankth)
 * [11 months, 2 weeks ago](https://wordpress.org/support/topic/php-warning-undefined-variable-deprecated/#post-18545574)
 * Hi [@garrigan](https://wordpress.org/support/users/garrigan/)
 * We’ve noticed this issue and will fix it in the next update. Thanks for letting
   us know.
    -  This reply was modified 11 months, 2 weeks ago by [visibility.so](https://wordpress.org/support/users/rankth/).
 *  Thread Starter [Jim Garrigan](https://wordpress.org/support/users/garrigan/)
 * (@garrigan)
 * [11 months, 2 weeks ago](https://wordpress.org/support/topic/php-warning-undefined-variable-deprecated/#post-18546294)
 * You are welcome and thank you for the update.
 *  Plugin Author [visibility.so](https://wordpress.org/support/users/rankth/)
 * (@rankth)
 * [11 months, 2 weeks ago](https://wordpress.org/support/topic/php-warning-undefined-variable-deprecated/#post-18547440)
 * The update is complete. Please check it and let us know if you encounter any 
   other issues.
 *  Thread Starter [Jim Garrigan](https://wordpress.org/support/users/garrigan/)
 * (@garrigan)
 * [11 months, 2 weeks ago](https://wordpress.org/support/topic/php-warning-undefined-variable-deprecated/#post-18547946)
 * Thank you

Viewing 4 replies - 1 through 4 (of 4 total)

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 * 4 replies
 * 2 participants
 * Last reply from: [Jim Garrigan](https://wordpress.org/support/users/garrigan/)
 * Last activity: [11 months, 2 weeks ago](https://wordpress.org/support/topic/php-warning-undefined-variable-deprecated/#post-18547946)
 * Status: resolved