How can I delete a group of contacts

Hello.

I use the French version of eMClient.
 I would like to try how to delete groups of contacts.

There
are 5 groups which I would like to delete, but it is impossible.
 “My
Contacts”, “Cowokers”, “Family” , “Friends” and “Starred in Android”.

Hello Stéphanie,

Could you please try deleting these Contact labels on the server? Go to https://contacts.google.com/ and click on the bin icon next to the labels you’d like to delete.

Regards,
Maurice