I was working on a wordpress installation located in a folder inside a subdomain ( http://alumnos.institutoilpa.com/nuevositio ) when suddenly the whole installation 'seems' to be dissapeared, because now when i try to go to any place of the wordpress (front or backend) i get redirected to the subdomain (outside the 'nuevositio' folder), where there's another wp installation and i get a 404 error in http://alumnos.institutoilpa.com (instead of http://alumnos.institutoilpa.com/nuevositio)
Help please, i cant even acces to the admin area.
When i got the problem i was uploading featured images to several posts (custom post types) at the time, using several browser tabs. Maybe this had omsething to do.
Thanks in advance