Wed Feb 27, 2019 5:39 pm by lax
I re-titled your thread for you.
PROBLEM WITH ISBOXER CONFIGURATION, HELP ME PLZ! is not a good thread title.
Your Inner Space download is not complete, apparently due to slow/unstable internet on your end. Until it is completely downloaded, Inner Space will not create a GameConfiguration.XML file. Run Inner Space or the launcher and allow it to continue trying to fully download and install.
You will continue to get a message about GameConfiguration.XML from ISBoxer until Inner Space is fully installed.
p.s. you should not be reinstalling anything, formatting anything, deleting anything, to resolve this issue ... let us know if you need further help with it.