Title: Plugin with 500 internal error
Last modified: November 6, 2019

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# Plugin with 500 internal error

 *  [hstanleycrow](https://wordpress.org/support/users/hstanleycrow/)
 * (@hstanleycrow)
 * [6 years, 7 months ago](https://wordpress.org/support/topic/plugin-with-500-internal-error/)
 * Hi, since 2 days ago users can’t buy because there are a 500 internal error.
 * Here is the log:
 * 2019-11-06T01:04:29+00:00 CRITICAL Uncaught Error: Call to undefined function
   GuzzleHttp\Psr7\stream_for() in /srv/users/serverpilot/apps/SITIO/public/wp-content/
   plugins/woo-mailerlite/vendor/guzzlehttp/psr7/src/Request.php:53
    Stack trace:#
   0 /srv/users/serverpilot/apps/SITIO/public/wp-content/plugins/woo-mailerlite/
   vendor/mailerlite/mailerlite-api-v2-php-sdk/src/Common/RestClient.php(96): GuzzleHttp\
   Psr7\Request->__construct(‘POST’, Object(GuzzleHttp\Psr7\Uri), Array, ‘{“data”:{“
   email…’) #1 /srv/users/serverpilot/apps/SITIO/public/wp-content/plugins/woo-mailerlite/
   vendor/mailerlite/mailerlite-api-v2-php-sdk/src/Common/RestClient.php(56): MailerLiteApi\
   Common\RestClient->send(‘POST’, ‘woocommerce/sav…’, Array) #2 /srv/users/serverpilot/
   apps/SITIO/public/wp-content/plugins/woo-mailerlite/vendor/mailerlite/mailerlite-
   api-v2-php-sdk/src/Api/WooCommerce.php(71): MailerLiteApi\Common\RestClient->
   post(‘woocommerce/sav…’, Array) #3 /srv/users/serverpilot/apps/SITIO/public/wp-
   content/plugins/woo-mailerlite/incl en /srv/users/serverpilot/apps/SITIO/public/
   wp-content/plugins/woo-mailerlite/vendor/guzzlehttp/psr7/src/Request.php en la
   línea 53

Viewing 1 replies (of 1 total)

 *  Thread Starter [hstanleycrow](https://wordpress.org/support/users/hstanleycrow/)
 * (@hstanleycrow)
 * [6 years, 7 months ago](https://wordpress.org/support/topic/plugin-with-500-internal-error/#post-12101114)
 * After deactivation of the pluing, users can buy again.

Viewing 1 replies (of 1 total)

The topic ‘Plugin with 500 internal error’ is closed to new replies.

 * ![](https://ps.w.org/woo-mailerlite/assets/icon-256x256.png?rev=3083985)
 * [MailerLite - WooCommerce integration](https://wordpress.org/plugins/woo-mailerlite/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/woo-mailerlite/#faq)
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 * [Unresolved Topics](https://wordpress.org/support/plugin/woo-mailerlite/unresolved/)
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## Tags

 * [error 500](https://wordpress.org/support/topic-tag/error-500/)

 * 1 reply
 * 1 participant
 * Last reply from: [hstanleycrow](https://wordpress.org/support/users/hstanleycrow/)
 * Last activity: [6 years, 7 months ago](https://wordpress.org/support/topic/plugin-with-500-internal-error/#post-12101114)
 * Status: not resolved