Katalon Studio does not run in Ubuntu

I’ve been trying to execute my short Katalon Studio web tests for some days. They run just fine in Windows, but in Ubuntu I obtain errors: “java.lang.NullPointerException” and further many lines of different “at com.kms.katalon…” or “at org.eclipse…”, "at java.lang.reflect… " or “at sun.reflect…” variations of errors.

I have openjdk version “1.8.0_171” and Katalon 64-4.8. My Ubuntu is in virtual box.

my command line is: sudo ./katalon --args -noSplash -runMode=console -consoleLog -projectPath=“Test3.prj” -reportFolder=“Reports” -reportFileName=“report” -retry=0 -testSuitePath=“TestSuites/testsuite3” -browserType=“Firefox(headless)”

I also tried it without sudo and --args and there were only errors as well. Could anyone tell me the trick how to make it run properly? I would appreciate it.