Hi Nikola,
thank you for fast answer.
I already removed all buttons from workers and admin emails.
And no, I don’t use any Google Calendar Extension 🙁
I really don’t know what is the problem.
I’m a web developer so I tried to search everywhere in wordpress to find something that delete the appointments, but I didn’t found nothing!!!
Soory for delay.
Thank you for the answer, the problem is on update plugin that lost the services order.
I’ll remember to update the services order after every plugin’s update
Adriano