Hello,
yes, it is a good idea to have a look at the database. The settings in the config.php file of your LimeSurvey installtation should match the "settings" of your database. "survey" seems to be a newly created use, did you grant the needed permissions and did you refresh the permissions?
If you want us to provide further help, please post some more information like what database/database version and LimeSurvey version you use.
The thread should be in "Installation & update issues", I'll move it there.