Fatal error: Uncaught Error: Interface "WPMailSMTP\Compatibility\Plugin\PluginInterface" not found in /home/tcalculu/pmtdemo.tcalculus.com/wp-cont/pmt.tcalculus.com/wp-content/pluginsent/plugins/wp-mail-smtp/src/Compatibility/Plugin/PluginAbstract.php:12 Stack trace: #0 {main} thrown in /home/tcalculu/pmtdemo.tcalculus.com/wp-cont/pmt.tcalculus.com/wp-content/pluginsent/plugins/wp-mail-smtp/src/Compatibility/Plugin/PluginAbstract.php on line 12