The subject validation returned with a "[2,"smw-datavalue-wikipage-invalid-title","User%3AOanaCarja%23_ef6166505489343a6f350bf3b2600378"]The page type input value "User%3AOanaCarja%23_ef6166505489343a6f350bf3b2600378" contains invalid characters or is incomplete and therefore can cause unexpected results during a query or annotation process." error.