Users cannot register! The activation email is sent, but the error shows that the user does not exist in database.

I cannot also create the admins from EDit ADMINS in Administrator section. It just shows a blank page and the admins are also not added.

Kindly help. You can visit my site at http://www.pottersrealm.tk to see the problem for yourself.

users CAN register, proof is my registration
about the error for adding admins, compare your nuke_authors db against a nuke-authors delivered with a fresh isntallation of nuke, if there are more/less fielsd in your table then that's the cause of the error.
There aret wo fixes then:
- Make the tables match
or
- Adjust the authors.php so that it sees the new rows in the table

I noticed something, users can't login when they use your tk address but they can when they use the IP address

Oh Oh! That is a problem, but I just dont understand about the admins. Here is a small code from the DB backup of my site. Is there something wrong?

that row isn't there by default and this causes problems in your files, remove that field out of your db and creating admins should work

I deleted that line from the DB, though the create admins is working, the newsflash block cannot be administered. So the main problem is that line. Could you please correct this problem for me? I am having no knowledge of this. So I turn to you. I would be highly obliged.

Put back the line, and post your admin/modules/author.php
I'll modify it so there will be no more problems

Here is my authors.php : And thank you!

edit Mighty_Y:
removed the code, for as long as the original poster didn't tell me that my new file worked his original code is available here => http://users.skynet.be/fa091229/image/authors.php (save target as)

working on it

http://users.skynet.be/fa091229/authors.php (Save target as..., best way to download it )

Makes sure you have inserted the row again at the same place otherwise this file isn't going to help much either