gizmox
Given this site says in 2014 gizmox rebranded and refocused their efforts, providing visual web gui for free...then in 2016 the company they rebranded as shut down altogether
Reddo Mobility shuts down. Is App Refactoring fading away?[
^]...my suggestion would be to either try it in a different version of visual studio or move to some other RAD GUI tool that meets your needs.
I know saying find a new RAD tool is easier said than done but its either that or use an old version of visual studio and see if that works. There is no visual web gui support for you to contact.
The product is no longer supported and is already 4+ years out of support, the problems you are going to run into are only going to increase.