Problem of external link

Hello to all
New to the forum, sorry for my English.

I am facing a small problem.

When I click on get code, redirect link on the webpage is not displayed.

On the Amazon coupon code I put https://www.amazon.fr/ link but the page when I click on the promo code will https://www.eurogagnant.fr/out/191/link/
not Found
The requested URL / out/191/link / was not found on this server.
I have a doubt in permalinks now:
Coupon Store Slug: store
PremiumPress Slug Name: coupon
Default

To better understand the following site: https://www.eurogagnant.fr/

So if someone has an idea.

thank you