Connect WHMCS to OVH.es domain names

Hi, I have been using WHMCS for many years now and I have some domains registered with [login to view URL] - but when I configure WHMCS to work with OVH through the WHMCS domain panel it does not connect. Also any domain I have manually registered to OVH that are in WHMCS, I can't open them - no access on WHMCS to all the domains registered with OVH. I understand there may be a module for this, and it uses SOAPI, but I have never figured out how to connect them. [login to view URL] - Please look at this link.