Thanks for sending the link to your account. However, I am showing that this account doesn't have a family site or family tree connected to it.
I notice you're using Family Tree Builder to build your family tree. If you use Family Tree Builder but never published your tree to a family site at MyHeritage, then a copy of your tree will be saved on your computer only.
In order to search for the tree on your computer, open Family Tree Builder and click on File > Import GEDCOM or genealogy file... Use the SCAN button to search your entire computer for family tree files and import them into Family Tree Builder.