Essential icons disappeared from task bar

Hi all,

I hope somebody can help me with a problem that just happened to me. Earlier today I suspended my notebook, but when I opened it again, the usual task bar icons (time, battery time, volume, network/wifi) disappeared and I do not know how to have them back.

After rebooting, the icons are there in the log in screen, but after I log myself in, they are just gone again.

Already tried:

rm ~/.config/dconf/user

to no avail. Has anybody run across this issue before?

Thanks!