Problem with pictures injected in pages

Hi, There is a terrible problems with pictures in pages. All th pictures that I put inside a pages makes a gallery into my content. See at :

https://couteaux.pleasureblog.net/project/christophe-decrand/

The 4 pictures at the beggining of the page are inected by your plugin … how to resolve the problem ?

https://www.ads-software.com/plugins/wp-user-frontend/