Hello everyone, I just made the transfer from one host to another of a web site in joomla I had problems because the new host could install a different version from that site and then I made the transfer using FTP, I imported the Base date but now I have this error:
Class 'JResponse' not found in /home/vitalexa/public_html/iandp.it/plugins/system/k2/k2.php on line 494

The link to see the error is: 181.224.135.248/~vitalexa/iandp.it/it/

I do not know how to solve it, I tried to rename k2.php ek2.xml the same mistake does not find the class to me then signals on another page because ...

Thanks for your help