So I have a PC running only Xubuntu 18.04 LTS, and I just install real VNC's VNC viewer - to access my Raspberry PI remotely. The second time I restarted, the WiFi button disappeared from panel 0 (task bar). I don't think I installed any other software recently before the problem. I had also made a c++ code that gave the error
Floating point exception (core dumped) when I run it. The code is compiling normal. The PC is an HP notebook 15.
edit: I can access the internet via auto connect, I can't select the network.
edit: I took one last try at fixing it and now my wifi button, discord button, and dropbox buttons are back.