I have downloaded magento2.4 using composer into my ubuntu 18.4 machine. But when I try to access the web interface for the installation it throws out a blank page. I have tried everything like permission,.htaccess configuration etc. but still the issue persists. Interestingly the log says that Application is not installed yet and there is no further information. If anybody have previous experience of this sort of problem can please tell me what could be the cause of this type of error?