I was trying on different tweaks on KDE plasma on debian buster. I right clicked on the KDE icon on the left corner of the panel and then clicked on the "alternatives". I tried different options. But when I clicked on "Z mode" or something like that (I don't remember exactly) all the desktop and panels widgets vanished.
Now I am left with a black screen. However I can still access all the applications through the terminal.
I have tried to restore it through the system settings but to no avail.
If anyone knows what is going wrong, please tell me.