ah, weird. Well, based on my experience that happens if you have template override files in your templates/templatename/html/com_easysocial that are based on older templates.
The other thing that might have happened is a corrupt filesystem, old cache, or faulty upgrade. Some files might be out of date.
Here are 4 suggestions to try:
Option 1: Clear all caches both server side and locally.
Option 2: Install Admin Tools and repair permissions and optimize database. Then install again.
Option 3: check if there are any template overrides in templates/ict_conches_pro/html/com_easysocial if so rename or delete them (Recommend to backup first)
Option 4: Try a full install, rather than just launcher install. In your Stackideas dashboard you can click the "Other Versions" link under the blue button/download link for EasySocial. There are three options. Try either full version or component version. These versions include the files, not just the installer (I have attached screenshots for reference). I recommend trying Full first, however... there is a risk that your hosting provider limits upload file size, so you might have to try Component version instead. If neither work, you can upload manually via FTP to administrator/components/com_easysocial/setup/packages