KDE neon 5.26
after installing some addons for "Pycharm" a d-bus or something like this... and XAMMP
after reboot: no wireless function, no networkcard function,
not able to start any software (I can open only .txt and .jpg files) and I can login into terminal
I do not see any device on dolphin, I see only my own home,
sound is disabled, enabling not possible
what can I do?