file permissions

File permissions set for all of Omeka is set to 775 and owned by me, but suddenly I am unable to add a record manually or through csv import.

I get the following error(s):

Import Error: Invalid File Download

Cannot write to the following directory: "/var/www/html/omeka/archive/files"!

The database is user/owner is admin, but it worked previously.

any ideas?

you can close. I figured it out.

archives need to be set to 777