Upgrade from 2.14 to 3.40

Hey i have page gonippon.pl
it was on ghost 2.14 for a long time, decided to update to 3 now.

CLI was updated first, update went without issues. when i check on my shh i see ghost version 3.40.2, the status is STOPPED but the site works perfectly.
i tried restarting and stoping and then starting, when doing that i see all the checklist going green and final confirmation saying ghost started but when i check again with GHOST STATUS command i immediately get status STOPPED (page still works fine)

well fine is not the best, cause when i go to admin of my website i see old design inside and when i check ABOUT GHOST from menu i still see GHOST 2.14…
what is going on?