If you report this error, please also report this tracking number which makes it possible to locate your session in the logs available to the system administrator:
5a3b3c6fdf
The debug information below may be of interest to the administrator / help desk:
SimpleSAML\Error\NotFound: The requested page 'https://id.cupratraininghub.com/simplesaml/module.php/core/theme/favicon.ico' could not be found. The URL wasn't found in the module.
This error probably is due to some unexpected behaviour or to misconfiguration of SimpleSAMLphp. Contact the administrator of this login service, and send them the error message above.