Admin page hangs browser

Hi, I have an annoying problem with the “Admin” page. Every time I go to this page, it hangs the browser as soon as I attempt to click on just doesn’t produce any effect (i.e. clicking on “update & check” or “users” and nothing happens).

I’m running the default stable branch (cloned from git yesterday) on a Debian Jessie server with MySQL 5.5.6. I thought this topic Problems accessing the admin/user page was a similar problem but not exactly as I don’t get the pink and can actually see a terminal window. What can I produce to provide you more info on this problem.

I did a tail -f -n100 on the apache access.log and get this:

192.168.X.X - - [18/Nov/2018:08:21:38 +0000] “GET /html/emoncms/admin/view HTTP/1.1” 200 5653 “http://192.168.X.Y:80/html/emoncms/input/view” “Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Firefox/60.0”

In fact when I click “Updates & check” nothing is logged to apaches access.log. Is this normal? If I do “service apache2 restart” i can navigate emoncms again without logging me out; alternatively, I have to shut the browser and login to emoncms again.