LibreNMS MS teams general error
Microsoft Teams Transport - Failed (General Error) On the file: /opt/librenms/LibreNMS/Alert/Transport/Msteams.php (Assuming that’s the path for your MSteams.php file) Where is: curl_setopt( $curl , CURLOPT_HTTPHEADER, [ 'Content-type' => 'application/json' , 'Expect:' , ]); Change it to: curl_setopt ( $curl , CURLOPT_HTTPHEADER, array ( 'Content-Type:application/json' , 'Expect:' ));