Title: Fatal Error
Last modified: February 7, 2022

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# Fatal Error

 *  Resolved [daretattoo](https://wordpress.org/support/users/daretattoo/)
 * (@daretattoo)
 * [4 years, 4 months ago](https://wordpress.org/support/topic/fatal-error-4067/)
 * Entered the API and got fatal error:
 * `Fatal error: Uncaught Error: Call to undefined function GuzzleHttp\Psr7\stream_for()
   in /home/customer/www/medikapro.mk/public_html/wp-content/plugins/connector-gravityforms-
   mailerlite/vendor/php-http/message/src/StreamFactory/GuzzleStreamFactory.php:
   21 Stack trace: #0 /home/customer/www/medikapro.mk/public_html/wp-content/plugins/
   connector-gravityforms-mailerlite/vendor/php-http/curl-client/src/Client.php(
   364): Http\Message\StreamFactory\GuzzleStreamFactory->createStream(Resource id#
   3053) #1 /home/customer/www/medikapro.mk/public_html/wp-content/plugins/connector-
   gravityforms-mailerlite/vendor/php-http/curl-client/src/Client.php(113): Http\
   Client\Curl\Client->createResponseBuilder() #2 /home/customer/www/medikapro.mk/
   public_html/wp-content/plugins/connector-gravityforms-mailerlite/vendor/mailerlite/
   mailerlite-api-v2-php-sdk/src/Common/RestClient.php(97): Http\Client\Curl\Client-
   >sendRequest(Object(GuzzleHttp\Psr7\Request)) #3 /home/customer/www/medikapro.
   mk/public_html/wp-content/plugins/connector-gravityforms-mailerlit in /home/customer/
   www/medikapro.mk/public_html/wp-content/plugins/connector-gravityforms-mailerlite/
   vendor/php-http/message/src/StreamFactory/GuzzleStreamFactory.php on line 21`
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Ffatal-error-4067%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 1 replies (of 1 total)

 *  Plugin Author [David Perez](https://wordpress.org/support/users/davidperez/)
 * (@davidperez)
 * [4 years, 4 months ago](https://wordpress.org/support/topic/fatal-error-4067/#post-15339424)
 * We have removed the library and use native method for connecting MailerLite’s
   API. Solved in version 1.5.

Viewing 1 replies (of 1 total)

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

 * ![](https://ps.w.org/connector-gravityforms-mailerlite/assets/icon-256x256.png?
   rev=2521881)
 * [Connector GravityForms and MailerLite](https://wordpress.org/plugins/connector-gravityforms-mailerlite/)
 * [Support Threads](https://wordpress.org/support/plugin/connector-gravityforms-mailerlite/)
 * [Active Topics](https://wordpress.org/support/plugin/connector-gravityforms-mailerlite/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/connector-gravityforms-mailerlite/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/connector-gravityforms-mailerlite/reviews/)

 * 1 reply
 * 2 participants
 * Last reply from: [David Perez](https://wordpress.org/support/users/davidperez/)
 * Last activity: [4 years, 4 months ago](https://wordpress.org/support/topic/fatal-error-4067/#post-15339424)
 * Status: resolved