Database Login Error message issue

Hi,
I was using a database with a user account. When I tried to go further go inside the database premises, I got the error as in the image above that you should administrator account. What I mean is, the account I am using is though a user account, but with full privileges. So why the system does gives the error to use access it from the administrator.
I am not able to get the admin access, but I know there might be a solution to it and could be accessed from the user account. I tried to direct the database to other drives of the PC.
I mean other than the primary partition, so that if I don’t have access to the Primary drive, but I do have full access to other drives, but still the problem remains as it was and gives me the error message again, but after some delay this time.
Can anybody sort this out?

Login Error
The database is not initialized.
You should use the administrator account to initialize the database.
Thanks!
