This is the most critical term. signals that the file is not an original untouched .jar download from Opera. It has been:
This blog post is for educational purposes only. The author and publisher are not responsible for any damage or issues that may arise from using or attempting to use Opera Mini 4.5 or the Handler 2.jar repack. Users assume all risks and responsibilities when using this software. Opera Mini 4.5 Handler 2.jar REPACK