My nextcloud server on debian had issues today, I could not access documents in the web app, it stated “in maintenance mode”. Same on nextcloud android app.
I discovered it was due to the modsecurity feature as disabling it made it work fine. Here is my ncp-report ncp-report output - Pastebin.com
I also noticed an error about my lets encrypt cert. i have it enabled but had to restore the entire partition last fall. I’ll try disabling lets encrypt and re-enabling.