I have accidentally messed with wp-config.php file and now nothign works...

I was attempting to fix an error with the installation of my domain mapping plugin but was only successful in having moved or deleted a necessary component of the wp-config.php file. Wp is prompting me to do word things and I 'm not sure what needs to be moved back to where without causing further damaged. Screen shots attached of what I am currently seeing from wp and also in my bluehost file manager account.

Please help!