I've recently upgraded my production Moodle site to 3.3.4, and would like to upgrade the attendance module to 3.3.15 from 126.96.36.199, and struggling to do so and could use some new ideas to try.
What I'm seeing is as I start the upgrade (via the Plugins overview page, clicking "install this update" with the Activity Module and the Block) is that the upgrade starts up--the browser shows it is installing (with the activity indicator in the browser tab) and I can see attendance update activity happening in the process list on my database server. Within 5-10 minutes, the activity indicator in the browser stops, the database activity seems to stop, and Moodle shows "site is being upgraded, try back later" though no upgrade activity seems to be happening on the database server.
I was able to back it off and stick with my current 188.8.131.52 version, but this isn't optimal. Has anyone been through this and could give me an idea of where I'm going wrong or where to start looking for answers in a log?