['solved'] Unable to access web interface after upgrading to NC 19 - (restored from a backup; reported a bug)

I am unable to load the web interface after upgrading to Nextcloud 19.

Everything is working just fine on the backend, but I am unable to access anything through the web. I’ve checked the Apache logs, but so far the error I found didn’t lead me to anything useful (tl;dr - copied the error, checked google, etc).

Sorry to be vague, but - tired.

The only error I get from Nextcloud directly is “internal server error”.

I’m trying to disable all the apps I can from the command line, but so far, nothing’s working. Any idea what I should look into?

Updated info:
Apache’s error.log has this error:

[Tue Jul 21 00:20:10.585525 2020] [access_compat:error] [pid 1595] [client IP REDACTED] AH01797: client denied by server configuration: /var/www/cloud/config


I restored from a backup, and I’m going to just leave it be. I’ve reported a bug, and I’ll see how that goes. Hopefully, I can provide some sort of useful info to the devs.

Otherwise, not bothered.