I keep getting this error every time I try to upload the csv file "Empty column names are not allowed!". It is a file of about 700 member, nothing more. Till the day, I have not being able to send an email due to this and it is getting frustrating. If I erase a couple of emails from the bottom and try importing again, it works fine. So what does this error really mean? If I can email or PM the file to the creator/admin here to have a look to try to help me, I would appreciate it.