Support
Write to support@sitekiteapp.com. A person who builds SiteKite reads it.
When something goes wrong
In SiteKite, Help › Show log shows what happened. Copy the last lines into your message, and say which sheet you were on and what you clicked.
Inside the app
Help › SiteKite help has a page for each mode, for Plan & Profile, and for printing and exporting. The steps at the top of the right-hand panels show what comes next on a job.
Your license
The key is on your account page. In SiteKite, click the license link in the title bar and paste it. If the year has run out, the jobs you made still open, save and export.