After my browser crashed while importing an .xml file,

After my browser crashed while importing an .xml file, everything on my wp-content/uploads folder disappeared.

Now when i upload files via wordpress media uploader, they go to a folder called 'files' which is located in wp-content but in the 'subdomain', so when i go to my server via ftp, that 'files' folder doesnt really exist. So when i upload any media i dont even get a thumbnail of it because -i guess- the file goes to a non-existing folder.

For example, i am creating a blog template to use with your New Blog Template plugin. It is being created in a sub-subdomain, and when i upload media to it, it goes to a non-existing (in my server, via ftp or cpanel) 'subdomain2.subdomain1.domain.com/wp-content/files/2013/08'

What should i do? Thanks