No connection to Nextcloud

Hello !

I have a litle problem, when I try to connect to my Nextcloud server.

I can’t add a folder sync because “No connection to Nextcloud” is available.

But I can connect to my account with my browser and the Android client and all work with another user.

It’s the same server. I don’t understand.
I try also on another computer and I have the same issue.

Please, can you help me ?

I use Nextcloud 19.0.3 and Nextcloud 3.0.1 on my computer.

Thank you

Sorry !

It’s a bug of Nextcloud.

I have a folder shared with another Nextcloud server, but that server is down, I deleted that share and now it works.