Update Uncode Theme from 1.4.1 to 2.2.3

I’m managing a customers website that has been built by someone else.
I just updated to the latest Wordpress version - and some stuff crashed (logo in the header, top slider and some other images).
Had a look and realised that the site is running Uncode version 1.4.1 - which probably is the problem.
But theres is no option available to update my version of Uncode.
Why is that? And is there a way for me to install the latest version 2.2.3
Since it wasn’t me who built it in the first place I don’t know how the license was bought
Could I buy a new license for the latest version and somehow update from that?


Contact with your purchase item author @undsgn right here as a comments hope they will helped!