No Dock in Ubuntu 18.04

I can only see default GNOME Dock when I click Activities:

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What I am already trying to do:

  1. I try remove GNOME files like .gnome .gnome2 .gconf .gconfd .metacity
  2. I disable all installed Gnome Extensions with Gnome Tweaks GUI.
  3. I ‘Reset to Defaults’ all Gnome Tweaks.
  4. I reset all changes in gnome with dconf reset -f /org/gnome/
  5. I try install sudo apt install gnome-shell-extension-ubuntu-dock but get message it already installed: gnome-shell-extension-ubuntu-dock is already the newest version (0.9.1ubuntu18.04.3).
  6. Thousands restarts and log-out’s..