Cannot Log into Zen Cart

When I'm trying to log into my Zen cart the following error appears:

0 DB_ERROR_NOT_CONNECTED
in:
[select * from project_version WHERE project_version_key = 'Zen-Cart Database' ]
If you were entering information, press the BACK button in your browser and re-check the information you had entered to be sure you left no blank fields.

I think my passwords, etc are the same, etc., as checked. I am really stuck as I cannot update my site. If soeone could help it would be much appreciated.

Thank you

Is this a new installation, or has it worked for a while? If it's been working, I'd contact youir host.

Hi there, no it's not a new installation, it's happened since installed plogger. I've contacted my host but they don't seem able to help me.

Thank you

Teresa

I don't know Plogger, but I assume it uses a database. Did you install it to the same DB as Zencart? If so, you may have overwritten the DB login and password when installing Plogger. It probably has a configure file where you can check it against the info in the ZC configure files.