Hi
Some days ago I edited my apps menu (kicker) using kmenuedit (right click on menu icon > Edit applications...). I created two new submenus and moved several apps to them using drag and drop. After this my plasma became unusable.
First login failed all the time, wallpaper and icons appeared but after some seconds my screen became black and only mouse pointer was visible.
After to follow these steps from Arch Wiki
https://wiki.archlinux.org/index.php/KD ... _strangely
I can start plasma again but it's unusable, extremely slow, always crashes when I click apps menu icon and my hard disk led is ON all the time.
To use kmenuedit to restore system menu ("Edit" menu > "Restore system menu") did not solved the problems.
I can start and use plasma without any problem using my second user account created for test purposes.
Can anyone help me please?
I use Arch Linux, plasma 5.12.2.
Thanks.

Solved after I renamed these folders:
~/.cache
~/.config
~/.kde4
~/.local/share