Last modification of Topaz Photo AI

I made last modification for Topaz Photo AI. It is terrible. More complex and effects are worst then before modifications. No possible to save photo. The program processing and processing and at the end I had to stop becouse nothing happened. I want to go back to previos versions. At least previous versions were working !!!
Pls, advise how to return to previous verion !

You can find all the releases by version here for download:

Download the preferred version locally, uninstall the current version and restart you computer. Once you are back up locate the downloaded file and install.