Upgrading from Winclone Basic 5.7.6

I’m running macOS Mojave now. I tried running Winclone Basic 5.7.6 which I purchased and installed on November 2016, but I got this error and I’m not able to proceed:

My understanding is that I get a free upgrade to version 6, so I first need to do that. Once I do that, then I can upgrade in-app just like the instructions here:

How can I do the first step (upgrade from version 5 to 6)?

Thanks,
Johnny

If you purchase an upgrade to Winclone 8, you will have access to prior versions of Winclone for free. See here: https://twocanoes.com/go-retro/

Also, if you are an existing customer, you get 50% off the upgrade.

tim