This issue is not caused by Securitycheck Pro as you have the latest version and geoblock is no longed available. I have tested the issue setting the VPN to Switzerland and yes, you can't reach the site.
Is the site using a cdn or other security software?
Hi Jose, I asked the owner of the site to contact the hosting (since the email is hers), and they made some adjustments that unlocked Switzerland and everyone is already having access normally. Thanks for the return Jose !!