Hi motti_b
The issues here especially using wordpress, is that the wordpress core files are constantly updated because of the open source nature of the system. Sadly there are too many people in the world who are happy to find exploits in the core and then scripts sold here, that it is always a case of playing catch-up by either authors or wordpress developers.
@ki-themes is a decent person who I trust can help you, and whatever you decide you need a developer or experienced coder to help your website stay online.
Best wishes