Problem only started after the update to V 5.7.9 and I clicked by mistake to "active" php,ini
As soon as I did that admin webpage then went blank, forum was not working and if going directly to admin URL could not log in as that page also blank and viewing source page showed totally blank
and any new post written was then erroring to a invalid path to a subdirectory called php.ini so it was making active that wrote something to a file, I did not and no such directory ever existed in languages until active was clicked by mistake
Does your language page of admin show like mine below ?
