Fatal error: Uncaught Error: Class 'Jetpack_IXR_Client' not found in /opt/app-root/src/wp-content/plugins/jetpack/jetpack_vendor/automattic/jetpack-connection/legacy/class-jetpack-ixr-clientmulticall.php:15 Stack trace: #0 {main} thrown in /opt/app-root/src/wp-content/plugins/jetpack/jetpack_vendor/automattic/jetpack-connection/legacy/class-jetpack-ixr-clientmulticall.php on line 15