"Show cart" show nothnig in french!

[glenanpl]

Hi,
With Joomla 3.6.5 and Virtuemart3.2.1 (migration site with VM Migrator). The Shop is only in French.
If Frontend is in English, all is OK when click on "show cart" button.
In French frontend, nothing appends when clicking on "Show Cart".
French Language for Joomla and Virtuemart is up-to-date.
An idea?
Thanks, in advance.
PL