User talk:Nordyorn

Backtrace: 0 C:\MediaWiki\mediawiki-1.23.5\extensions\SimpleSAMLphp\www\module.php:179 (N/A) Caused by: Exception: Missing key in public key details.

how to fix>?

Please refer to https://simplesamlphp.org/docs/stable/simplesamlphp-sp#section_1_1

I think this is a configuration issue in your SimpleSAMLphp instance. If you have trouble with this you should ask on the SimpleSAMLphp mailing list.