Title: Error SEOPRESS
Last modified: January 31, 2022

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# Error SEOPRESS

 *  Resolved [igorlecroc](https://wordpress.org/support/users/igorlecroc/)
 * (@igorlecroc)
 * [4 years, 4 months ago](https://wordpress.org/support/topic/error-seopress/)
 * Hello,
    I have this error crashing my website when editing a booking. Below this
   error there is the content of the line 113 If you could enlighten me about this?
   First time a see this one.
 * =======
    Fatal error: Uncaught Error: Undefined class constant ‘MAJOR_VERSION’
   in /home/xxxx/wp-content/plugins/wp- seopress/vendor/guzzlehttp/guzzle/src/Utils.
   php:113 Stack trace: #0 /home/xxxx/wp-content/plugins/wp- seopress/vendor/guzzlehttp/
   guzzle/src/functions.php(71):GuzzleHttp|Utils::defaultUserAgent() #1 /home/xxxx/
   wp-content/plugins/post-smtp/Postman/Postman- Mail/google-api-client/vendor/guzzlehttp/
   guzzle/src/Client.php(194): GuzzleHttp|default_user_agent() #2 /home /wp- content/
   plugins/post-smtp/Postman/Postman-Mail/google-api- client/vendor/guzzlehttp/guzzle/
   src/Client.php(75):GuzzleHttp\Client-configureDefaults(Array) #3 /home/xxxx/wp-
   content/plugins/wp- seopress/vendor/google/apiclient/src/Client.php(1210):GuzzleHttp
   |Client->__construct(Array) #4 /home/xxxx/wp-content/plugins/wp- seopress/vendor/
   google/apiclient/src/Client.php(1163):Google|Client-createDefaultHttpCliin /home/
   xxxx/wp-content/plugins/wp- seopress/vendor/guzzlehttp/guzzle/src/Utils.php on
   line 113
 * Une erreur critique est survenue sur ce site. Veuillez consulter la boite de 
   réception de l’e-mail
    ‘administration de vote site pour plus d’informations.
 * En apprendre plus sur le débogage de WordPress.
    =======
 * Line 113 below
 * =====
 *     ```
       /**
            * Get the default User-Agent string to use with Guzzle.
            */
           public static function defaultUserAgent(): string
           {
               return sprintf('GuzzleHttp/%d', ClientInterface::MAJOR_VERSION);
           }
       ```
   
 * =====

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Plugin Author [Benjamin Denis](https://wordpress.org/support/users/rainbowgeek/)
 * (@rainbowgeek)
 * [4 years, 4 months ago](https://wordpress.org/support/topic/error-seopress/#post-15312356)
 * Still working on this Guzzle conflict.
 * Really tricky to fix because of the lack of a dependency manager in WordPress.
 * Testing different solutions.
 * Hope we can have a fix soon.
 * In the meantime, you can rollback to version 5.3.1 of Free and PRO to prevent
   this conflict.
 * Thx
 *  Plugin Author [Benjamin Denis](https://wordpress.org/support/users/rainbowgeek/)
 * (@rainbowgeek)
 * [4 years, 4 months ago](https://wordpress.org/support/topic/error-seopress/#post-15315594)
 * Hi,
    ​ could you update to version SEOPress Free 5.4.4 and SEOPress PRO 5.4.3
   please? ​ ​It should solve this issue. ​ ​Let us know if it still doesn’t work
   as expected. ​ ​Thanks!
 *  Thread Starter [igorlecroc](https://wordpress.org/support/users/igorlecroc/)
 * (@igorlecroc)
 * [4 years, 4 months ago](https://wordpress.org/support/topic/error-seopress/#post-15315883)
 * The roll back to 5.3.1 free worked for me.
 * I’ll try SEOpress Free 5.4.4 and let you know if its ok.
 * Thank you

Viewing 3 replies - 1 through 3 (of 3 total)

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

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 * 3 replies
 * 2 participants
 * Last reply from: [igorlecroc](https://wordpress.org/support/users/igorlecroc/)
 * Last activity: [4 years, 4 months ago](https://wordpress.org/support/topic/error-seopress/#post-15315883)
 * Status: resolved