Upload error in v.9.0 community

I installed Seafile server v.9.0. In WebGUI I have “network error” when I try to upload any file.
I’ve chaned domain name in WebGUI Admin pahe in settings but nothing.
Could you help ?

Nevermind… :wink:
I turned out I typed http insted of https in URLs in Admin → Settings in WebGUI.
Now it works.
Cheers whole Seafile team for good work!