Seafile client - unable select folder manually

Hi,
I’m trying to setting up an new client.
After login I can not select manually a folder to sync on my computer.
I’m using a separate partition on my disk. I’s mounted in /media/Data.
When I try to select an existing folder, client shows the selection as follows:
/run/user/1000/doc/28e75777/selected_folder

How can I select a valid path?