I've included the api world check one in my c # code and it works fine but now it catches with the exception "La demande a été abandonnée : Impossible de créer un canal sécurisé SSL/TLS."
@mohamed.amin.waari,
Request you to raise a support ticket for this issue by clicking the link below and they should be able to address the issue you are facing.
https://my.refinitiv.com/content/mytr/en/productsupport.html?productName=Thomson%20Reuters%20World-Check%20One%20API
I am moving this question to private as this does not qualify to be a developer community question.