Tailscale did update the ‘stable’ version which does not resolve the issue, seems they didn’t update the code.
you can try the temporary method:
When you start the Tailscale add-on, go to its log page and find the authenticate link, visit the link to connect the tailscale service.
Thank You for your answer but i (and also “edimarcr”) already posted that the solution adds iHost to the Tailscale console list , but iHost still can not go online.
Finally the suggested solution does not work.
hi, please try again, you may need to open the page and connect within 1 minute.
Yessss, thank you! 
My method, that worked:
- stop tailscale in iHost
- delete iHost in Tailscale console (if it were there already)
- retart Tailscale in iHost, and seet the logs immediately (need to press F5 to refresh)
- find and copy the authenticate link (last lines int the log) to browser and connect! (it seems you have one minute indeed)
I gues it is working until reboot iHost, but it works that way, until they fix the issue.