- The following error appears in the Apache log that could be seen at Domains > example.log > Log in Plesk UI or directly on the server at /var/log/httpd/error_log :
CONFIG_TEXT: ModSecurity: JSON support was not enabled [hostname "example.com"] [uri "/wp-json/notificationx/v1/notice/"] [unique_id "Y@ELjOjkojqzjiuIAB6puAAAANA"]
API queries using JSON format are not processed by the web application.
The ModSecurity package provided by Plesk does not have built-in JSON support.
The bug is fixed in Plesk 18.0.51.
Consider updating Plesk to the latest version.