Cannot read property 'stacktrace' of null

[melroy89]

I installed the Joplin app under my Nextcloud 17.0.3 installation. And try to use the Joplin Desktop app. The sync config says "Success!", while the 'Check status' button gives me:

Beta: Joplin Nextcloud App status: Error
Cannot read property 'stacktrace' of null

What do I wrong? The app is installed & enabled in Nextcloud.

Regards,
Melroy

[sebastRu]

Check your WebDAV URL.

I'd input my url to http instead of https with the 'ignore TLS certificate errors' option checked (I have a self-signed certificate). Using the correct URL fixed this issue for me.