Even if the issue wasn’t already fixed it wouldn’t matter to you because this site is using a version from October 2017.
I pay only cents of dollars every month to Google Cloud (it gives free usage of their simplest virtual machine, but since I’m in another continent, I pay for the network usage)
Then you can have your own kanboard installation, and using letsencrypt you get ssl for free. And can also have the latest kanboard version.
If you wish a domain, it can cost 5 dollars a year depending on the name, or you can use a “no-ip” solution.
What I mean is, it’s not expensive to have your own kanboard installation, if you don’t have hundreds of users and don’t plan on uploading tons of files to it.