If Kyno doesn't start at all or displays a nasty looking error dialog at startup, you should contact firstname.lastname@example.org for help.
When contacting us, please include a copy of your log files in your email so we can analyze the problem straight away.
You can find your log files in the following locations:
macOS: <user-home>/Library/Logs/Kyno (press Cmd-Shift-G and paste ~/Library/Logs/Kyno to go there)
Zip all files or the whole folder and attach it to your support email and we'll get back to you.