[Owncloud] change of server from debian to ubuntu

[tracker]

i have a question i did change server from debian to ubuntu with plesk 
(owncloud 4,1)  and now when i try to login from android app it wont let me 
login

are there any httpd specials i have to use ?

in my profile in cloud it tell me to use this link 
https://************/cloud/remote.php/webdav/
but apps will login to this url 
https://*******/cloud/remote.php/files/webdav/
non of them are working ?

Regards Tracker