Sandin0 thanks, but I realised what is the problem now, but I dont Know how to solve it.

Its not RV SKINS, cause I tried to create a new account with a default Cpanel skin and i have the same problem.

I updated Cpanel and then terminate one of the accounts with problems. Then I tried to create a new one and while WHM was setting up the account I got a small error.

Setting up Frontpage?...
/home/usernamehere/public_html does not exist or is not a directory!
WHM IS NOT CREATING THE ACCOUNT REALLY !

Under /home/usernamehere/
theres no public_html folder or any other file. Its only a blank Folder. Thats why I couldnt login into Cpanel.

So the problem is that WHM is not setting the accounts.. it only creates a blank folder !

Any answer to this ???

Thanks for your time guys !