Do you still have the Software Center open? Only one package manager can operate at a time. Make sure you close Software Center, or if your using terminal, close the window, then try Synaptic again. If your still having issues, its beyond my current level of Linux knowledge.
When tried update from synaptic have this error
E: oracle-java11-installer-local: podproces zainstalowany pakiet oracle-java11-installer-local skrypt post-installation zwrócił kod błędu 1
code fail 1
What if re-install java?
Could you support with some link guide?
Option One:
Easy solution
Remove it:
sudo apt remove oracle-java11-installer-local
Option Two
Complex solution: place the proper files in the proper places:
sudo mv jdk-11.0.5_linux-x64_bin.tar.gz /var/cache/oracle-jdk11-installer-local/
sudo rm /var/lib/dpkg/info/oracle-java11-installer-local.postinst
sudo apt update && sudo apt upgrade
It is blocked any software and blocked commands in terminal. The same problem. Maybe best uninstall. What a hell one things blocked all.
Close Synaptic. Close Software Store. Close Terminal.
Then open a new terminal and run:
sudo apt remove oracle-java11-installer-local
Close terminal when done.
Reboot.
Open Software Store and test.
[Solved] Could not get lock /var/lib/dpkg/lock Error in Ubuntu here some webside about this problem what i find now.
Have you closed Software Store and Synaptic both?
If you have, then please follow This Excellent Guide to remove the /var/lib/dpkg/lock:
Edit: jinx...
You mean when I have opened another software like Store or Synaptic then this blocked my terminal.
It Locks APT from removing or installing. Only One Installer or Remover can operate at a time.
From solution two is wrote no file or catalog.
sudo mv jdk-11.0.5_linux-x64_bin.tar.gz /var/cache/oracle-jdk11-installer-local/
You may have downloaded a different package or installed java 11 in a different way. I guessed.
Try Option One.
Yeah, I had mentioned that to him in post number 8. But if he's still having trouble after shutting those down, then maybe he should restart his computer.
Gotta drive my son in to work if you can carry on the thread.... 
Ok. Have a nice day. Uninstalled and then check what next. I will try will your guide link.
In synaptic, with software updater and terminal closed, did you check the broken packages item on the left near the bottom?
If there is nothing there, removing and reinstalling java 11 will most likely fix your issue. Do this from the terminal with synaptic closed.
I uninstalled java and now no conflicts.
If you must reinstall, try to do it through the terminal or synaptic. Any software that requires it will fail to launch with a dependency error. You can fix broken packages, dependency issues in synaptic. Just be aware if something doesn't launch.
