phpVirtualBox Invalid username or password , Virtualbox

Error MessagesInvalid username or passwordThe default username / password to use when logging in to phpVirtualBox is admin / admin. See: https://sourceforge.net/p/phpvirtualbox/wiki/Authentication%20in%20phpVirtualBox/Some users have reported issues logging in if the PHP engine can't write to its session folder.

It is impossible to cover all the possible PHP configurations here, so difficult to .....