What is this?????#1044 – Access denied for user…..

Hey,
Can someone tell me what this is?

I tried to remove a wordpress install from my main directory that was not the generic wordpress. (It had ads on it and prevented me from setting a static front page, hence the removal)

Anyway, I tried to remove the install by going to phpMyAdmin from cPanel. I removed wordpress but there’s a database there with 33 tables. I checked all of them and then clicked ‘drop’ to have them deleted. I got this message:

#1044 – Access denied for user ‘XXXXXX’@’localhost’ to database ‘information_schema’

I’m unable to get rid of them.

I am setting up a new website and want a fresh clean install of wordpress on there. How do I go about removing everything off that new domain name? Any help would be greatly appreciated.
Thanks
deal68