I established an omeka account in 2009 for the Plainfield NH Historical Society (phsnh.org). We scanned and uploaded over 400 photographs, but we did not follow through with development. I had logins for phsnh and msutherland, including a “super user” account. None of those login credentials are active/recognized. Is there a way to reconnect with our data, or is it lost at this point?
If the installation you created still exists on your server, you should be able to recover the data from the files and the MySQL database. If nothing else you could use the documentation for moving to another server, although you may be able to reset the password through PHPMyAdmin.