Java Error in fresh installation on Ubuntu

New, fresh installation on Ubuntu 16.04. After installation I had to manually change rights to both log files (chmod 666). I’m trying to choose standard setup (recommended) on first initial screen - nothing happen. In log I see list of java error’s starting with:

[ERROR] [org.apache.felix.configadmin ] - Persisting ID org.openhab.addons failed No Privileges

How to solve it ? Where I have to give rights ?

More than just your logs have the wrong permissions. How did you install?