I just opened my laptop today and when I logged in I only can see the desktop and files in desktop. No menu bar or anything. I can open the terminal; I tried "update" and "upgrade" to fix it but still I'm still having the same problem. I tried the compiz config. I'm using Ubuntu 16.04. The page provided did not solve the problem.
: Phalcon\Cache\Backend\File::save(): Only 0 of 31725 bytes written, possibly out of free disk space in /home/queryxchang/public_html/public/index.php on line 37
Cache file /home/queryxchang/public_html/apps/frontend/config/../cache/-q-3-1008088-logging-in-to-a-desktop-only- could not be written