Hi Mohamed, we are revamping the Marketplace site, and this forum is not active at the moment.
Can you please post your question on our Ask page: https://liferay.dev/ask
or post it in the appropriate channel of the Liferay Community Chat: https://join.slack.com/t/liferay-community/shared_invite/zt-1du3jm1gm-ir6YlBOu3TtdIpLXcFjJ2Q
As you do that, please add more information, such as your DXP version, the steps you used to enable SAML and if you see any errors in the logs or UI.
Best regards,
Patricia