The open-source LibreOffice has an excellent Croatian localization. It can open and save all Office 2016 file formats (.docx, .xlsx). For zero cost and zero legal risk, this is powerful.
Solution: The repack reset your activation token. Run your original Office activator (or re-enter your product key). The language pack itself does not require a separate license. microsoft office 2016 croatian language pack repack
A legitimate repack of the Microsoft Office 2016 Croatian language pack aims to: Solution: The repack reset your activation token
Under Croatian copyright law (Zakon o autorskom pravu), circumventing technical protection measures (like Microsoft’s licensing checks) is illegal. However, if you already own a legitimate license for Office 2016, installing a language pack—even a repack—is a grey area. Microsoft has rarely sued individual users for language pack circumvention, but it violates the EULA (End User License Agreement), Section 2(b): "You may not ... circumvent technical restrictions in the software." A legitimate repack of the Microsoft Office 2016