Title: Persistent Error
Last modified: October 30, 2022

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# Persistent Error

 *  [kimstarmartin](https://wordpress.org/support/users/kimstarmartin/)
 * (@kimstarmartin)
 * [3 years, 7 months ago](https://wordpress.org/support/topic/persistent-error/)
 * I keep receiving a notification daily from our server host for this error with
   this JWT Authentication plugin. We use this plugin to make our AppPresser app
   work.
 * WordPress version 6.0.3
    Active theme: Divi Child (version ) Current plugin: 
   JWT Authentication for WP-API (version 1.3.2) PHP version 8.0.23
 * Error Details
    ============= An error of type E_ERROR was caused in line 434 
   of the file /nas/content/live/kimstarmartin/wp-content/plugins/jwt-authentication-
   for-wp-rest-api/includes/vendor/firebase/php-jwt/src/JWT.php. Error message: 
   Uncaught UnexpectedValueException: “kid” empty, unable to lookup correct key 
   in /nas/content/live/kimstarmartin/wp-content/plugins/jwt-authentication-for-
   wp-rest-api/includes/vendor/firebase/php-jwt/src/JWT.php:434 Stack trace: #0 /
   nas/content/live/kimstarmartin/wp-content/plugins/jwt-authentication-for-wp-rest-
   api/includes/vendor/firebase/php-jwt/src/JWT.php(128): FirebaseJWTJWT::getKey(‘
   M{CTdls!`
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fpersistent-error%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

The topic ‘Persistent Error’ is closed to new replies.

 * ![](https://ps.w.org/jwt-authentication-for-wp-rest-api/assets/icon-256x256.jpg?
   rev=3372068)
 * [JWT Authentication for WP REST API](https://wordpress.org/plugins/jwt-authentication-for-wp-rest-api/)
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 * 0 replies
 * 1 participant
 * Last reply from: [kimstarmartin](https://wordpress.org/support/users/kimstarmartin/)
 * Last activity: [3 years, 7 months ago](https://wordpress.org/support/topic/persistent-error/)
 * Status: not resolved