Nextcloud appstore missing

I’m having the problem described in this post:
The solution there doesn’t seem to work for me, probably because am editing the wrong version of this path: /nextcloud/resources/config/ca-bundle.crt (when using find in ssh in my umbrel, I see a few versions of the path).
Does anyone have the same problem?
Reinstalling nextcloud didn’t solve it.

I tried the noob solution and worked. Just reflashed Umbrel SD, and the app store was back.
Since all the data is stored on the SSD, just had to log in and everything was there.