Error?

[Kyttias]

This can be caused by any number of things, unfortunately - is domain mapping/subdomains involved (what does your config file look like)? Did you purge your database, too - (your userid may not be matching the admin userid on a new install if the old information is still in the database)? Are the permissions on your uploaded files set to anything strange (chmod related stuff, 664 is what files generally should be, just make sure they aren't anything odd like 000 or something)?