Update Renovate construction theme

Hi
i Have Renovate Construction renovation Theme 1,2 the theme is no more working how can i update the theme?

You should login using the acocunt which purchased the theme (this one has no buyer badge) and contact the author for help

The company that made the website is closed, I guess I can just buy the theme

It is the best option plus you will then have 6 months support and lifetime updates