Service are changed automatically

Hi,

I have a serious issue. When a customer makes an appointment everything works fine and the entry is also made in the google calendar. After a couple of minutes the service in wordpress is changed to the default service. In google it is fine. Do you know what the problem is? I think this is some problem with the sync from google and the plugin. It worked fine for my client before the update I did last week.

please check asap

thanks