Before i start i know what your going to say no no no no no never install Joomla sites with the same prefix or on the same db but hear me out.
Its the same website essentially one installed in route and one in route/dir Essentially the route website file structure has somehow become corrupt.
So as a test i have installed a rolled back version in a sub directory. I simply want to login and check the error has gone and then migrate the files to live.
Im not updating any articles or anything as the error was with the login. However i am worried if i create a session by logging in it might mess things up
Is this ok?