In-app purchase is not supported

[yang (Yang.Y)]

Hi Robin, a reinstallation should fix the problem, please follow steps in this post:

I got error while purchasing Premium license

Some of our users reported that Core Shell/ Tunnel failed to complete their purchases and displayed a pop-up warning: [image] Reinstall It's very likely a problem of the App Store or macOS, please try deleting the app and reinstalling it from the App Store again. Don't worry, your data keeps untouched if you delete the app from Launchpad, all the profiles will be back after you reinstall Core Shell/ Tunnel. WARN: do not uninstall the app using third-party tools such as "CleanMyMac". Contac…

And you can backup folders if you worry about data losing:

~/Library/Containers/io.coressh.shell/Data/Library/Application\ Support/io.coressh.shell
~/Library/Group\ Containers/E78WKS7W4U.io.coressh.ssh/