Title: [Plugin: Constant Contact for WordPress] Fatal Protocol Error
Last modified: August 19, 2016

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# [Plugin: Constant Contact for WordPress] Fatal Protocol Error

 *  [sommernyte](https://wordpress.org/support/users/sommernyte/)
 * (@sommernyte)
 * [15 years, 4 months ago](https://wordpress.org/support/topic/plugin-constant-contact-for-wordpress-fatal-protocol-error/)
 * I see other posts about the same topic, which is the fatal protocol error in “
   wp-content/plugins/constant-contact-api/class.cc.php on line 1913”
 * However, I’m unclear on whether this is a problem on my end or the plugin (or
   Constant Contact). Some people seem to have it resolve itself on its own, I’ve
   seen the plugin author mention they needed to upgrade the plugin, and I’ve seen
   others suggest it’s a server issue.
 * Where do I start the troubleshooting?
 * Thanks. 🙂

The topic ‘[Plugin: Constant Contact for WordPress] Fatal Protocol Error’ is closed
to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/constant-contact-api_f6e5e6.svg)
 * [Constant Contact for WordPress](https://wordpress.org/plugins/constant-contact-api/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/constant-contact-api/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/constant-contact-api/)
 * [Active Topics](https://wordpress.org/support/plugin/constant-contact-api/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/constant-contact-api/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/constant-contact-api/reviews/)

 * 0 replies
 * 1 participant
 * Last reply from: [sommernyte](https://wordpress.org/support/users/sommernyte/)
 * Last activity: [15 years, 4 months ago](https://wordpress.org/support/topic/plugin-constant-contact-for-wordpress-fatal-protocol-error/)
 * Status: not resolved