I have a very old Nextcloud 20.0.14 instance that has been failing to upgrade using the webupgrade function. It downloads, goes into maintenance mode, and starts the upgrade but fails without displaying any helpful error other than something like upgrade failed.
Can someone help me find the location of the log file created during a webupdate to help me dig into specifically why this is failing?
My install path is /var/www/nextcloud. The only log folders in there seem to be related to apps or 3rdparty.