Title: Fatal error Last modified: February 22, 2022 --- # Fatal error * Resolved [Kyle T](https://wordpress.org/support/users/kyle9296/) * (@kyle9296) * [4 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-4083/) * I get a fatal error when I try to activate Jetpack. I’ve reinstalled it twice, disabled all plugins, and even changed themes but nothing works. I’m not a coder so the best I could do is post the 3 errors I get when I run a site health check. If you need something else, please post specific directions on where I find it. Thanks! * A PHP session was created by a session_start() function call. This interferes with REST API and loopback requests. The session should be closed by session_write_close() before making any HTTP requests. * The REST API request failed due to an error. Error: cURL error 28: Operation timed out after 10001 milliseconds with 0 bytes received (http_request_failed) * The value, WP_DEBUG_DISPLAY, has either been enabled by WP_DEBUG or added to your configuration file. This will make errors display on the front end of your site.` * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Ffatal-error-4083%2F%3Foutput_format%3Dmd&locale=en_US) to see the link]_ Viewing 5 replies - 1 through 5 (of 5 total) * Plugin Support [lastsplash (a11n)](https://wordpress.org/support/users/lastsplash/) * (@lastsplash) * [4 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-4083/#post-15392631) * Hi [@kyle9296](https://wordpress.org/support/users/kyle9296/) – * Thanks for making a thread over here. * Looking at your site, our attempts to communicate with your site are running into rate limiting. Jetpack communicates via the `xmlrpc.php` file. However, we’re getting a [429 error](https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/429) after several attempts. * This error means that something on your server is blocking our access to the ` xmlrpc.php` file. The most likely culprits are a security plugin (please try to temporarily disable it to see if that solves the issue) or that your web host is blocking our requests. * If you aren’t running a security plugin, please try contacting your hosting provider and asking them to check their security logs to see if they are blocking or otherwise limiting incoming and outgoing connections over XML-RPC. * Jetpack uses this file to communicate with your site, but some hosts block connection requests to that file. * Our requests look like the following: * – File: /xmlrpc.php – User-agent header: Jetpack by WordPress.com – IPs: [https://jetpack.com/support/how-to-allowlist-jetpack-ip/](https://jetpack.com/support/how-to-allowlist-jetpack-ip/) * Please ask them to allowlist the IP addresses listed above. Note that these IP addresses could change (or more could be added) at any time, which could break your connection to Jetpack. For this reason, we actually discourage allowing specific IPs, although with some hosts it may be the only option. * Thread Starter [Kyle T](https://wordpress.org/support/users/kyle9296/) * (@kyle9296) * [4 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-4083/#post-15397191) * Elementor support checked the error log and said there were no errors to report. I attempted to uninstall Jetpack and got the following: * `Deletion failed: {"success":true,"data":{"delete":"plugin","slug":"jetpack"," plugin":"jetpack\/jetpack.php","pluginName":"Jetpack"}} Warning: require(/mnt/ customers-man/customers-el-3337068-20377-phdtackle-wordpress-pvc-61f5a1916f650f0023b22ebe/ wp-content/wp-content/plugins/jetpack/jetpack_vendor/automattic/jetpack-assets/ src/class-assets.php): failed to open stream: No such file or directory in /mnt/ customers-man/customers-el-3337068-20377-phdtackle-wordpress-pvc-61f5a1916f650f0023b22ebe/ wp-content/wp-content/plugins/jetpack/vendor/jetpack-autoloader/class-php-autoloader. php on line 90 Fatal error: require(): Failed opening required '/mnt/customers- man/customers-el-3337068-20377-phdtackle-wordpress-pvc-61f5a1916f650f0023b22ebe/ wp-content/wp-content/plugins/jetpack/jetpack_vendor/automattic/jetpack-assets/ src/class-assets.php' (include_path='.:/usr/share/php7') in /mnt/customers-man/ customers-el-3337068-20377-phdtackle-wordpress-pvc-61f5a1916f650f0023b22ebe/wp- content/wp-content/plugins/jetpack/vendor/jetpack-autoloader/class-php-autoloader. php on line 90` * [Bruce (a11n)](https://wordpress.org/support/users/bruceallen/) * (@bruceallen) * Happiness Engineer * [4 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-4083/#post-15405244) * Hi [@kyle9296](https://wordpress.org/support/users/kyle9296/) * Are you able to delete the Jetpack folder off of your site using FTP or your web host’s file manager? * Thread Starter [Kyle T](https://wordpress.org/support/users/kyle9296/) * (@kyle9296) * [4 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-4083/#post-15405260) * I finally deleted it. I finally found out that Elementor webhosting blocks Jetpack so I’m moving my hosting elsewhere. Any suggestions? * [Bruce (a11n)](https://wordpress.org/support/users/bruceallen/) * (@bruceallen) * Happiness Engineer * [4 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-4083/#post-15415667) * We have a list of recommended hosts here: * [https://jetpack.com/hosting/](https://jetpack.com/hosting/) Viewing 5 replies - 1 through 5 (of 5 total) The topic ‘Fatal error’ is closed to new replies. * ![](https://ps.w.org/jetpack/assets/icon.svg?rev=2819237) * [Jetpack - WP Security, Backup, Speed, & Growth](https://wordpress.org/plugins/jetpack/) * [Frequently Asked Questions](https://wordpress.org/plugins/jetpack/#faq) * [Support Threads](https://wordpress.org/support/plugin/jetpack/) * [Active Topics](https://wordpress.org/support/plugin/jetpack/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/jetpack/unresolved/) * [Reviews](https://wordpress.org/support/plugin/jetpack/reviews/) * 5 replies * 3 participants * Last reply from: [Bruce (a11n)](https://wordpress.org/support/users/bruceallen/) * Last activity: [4 years, 3 months ago](https://wordpress.org/support/topic/fatal-error-4083/#post-15415667) * Status: resolved