soap uin scripts from command line

Hi

Getting below error when trying to launch testrunner from soap ui or trying to run testrunner.bat from command line.

log4j:ERROR setFile(null,true) call failed.
java.io.FileNotFoundException: global-groovy.log (Access is denied)

Can anyone please help in resolving the issue. Unable to run any soap ui scripts from command line using soap ui free version.

Thanks,