asked to import contact every time I open emclient.

I run version 6,0.24 after removing version 7 witch did not work well with gmail and gave very bad performance.
Returning to version 6 was hard work but now it’s done and I’m staying there!

I’m very happy with my old version back but now, every time I open emclient, I’m asked to import contact from a file…
I do know have any local contact, only my contact from gmail in sync.

I don’t understand why and I do not know how to remove this bothering message…
help please.