Problem with the date

Hi !
First of all thanks for this plugin which is great ??
Now, I have a problem with the date of my post !
Indeed, my webdesite is in French, so the date is in french too (maybe that’s the problem).
I inquire the date of the post (for example 30/06/2014), but on the display it’s written “Jan 01” for all of my posts.

Do you have a solution ?

Thanks !

https://www.ads-software.com/plugins/cool-timeline/