Can not install Blog App 2.0.1

Hello
On our pre prod site, we are testing your new version of EasyBlog. Unfortunately, when trying to install the App folders, We have this error message "can not find a xml installation file"
I think this is causing this error on our profil pages :
Strict Standards: Declaration of SocialUserAppBlog:nNotificationLoad() should be compatible with SocialAppItem:nNotificationLoad(SocialTableNotification &$item) in /data1user/web03/htdocs/media/com_easysocial/apps/user/blog/blog.php on line 0
and also in our status windows the blog button is broken !!! (as shown in the attachment)

Any hint to solve this issue ?
We are running on Joomla 3.6.4
We have just update EasySocial to 2.0.5 and EasyBlog to 5.0.41

Thanks a lot
Marie-France