First thing you need to do is test the ISO your using not all downloads complete and leave out parts of the OS…. Download the ISO and the sha256sum or md5sum then use a terminal to check it by changing directory to where you download it AKA via terminal with these commands cd Downloads that changes it to the downloads folder then run the command ls that will list what’s there then copy the name of the ISO and put sha256sum or md5sum witch ever it is in front of the iso name with one space hit enter it will calculate the contents of the ISO and then you verify it is Exactly the same as the listed sum before we troubleshoot anything that must be done……. if you need further help come to the Makulu discord forum!