[ojs-3.4.0.3] the display of the admin dashboard is not correct (?CSS issue?)

Hi,
some days ago we upgrade our OJS to 3.4.0.3 and it was working fine …
but today the dashboard display does not look right.
All the items appears in a column … as if ?div tags are not working!

The display is correct on my Android phone and on Firefox … the problem is with Microsoft edge!